document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=729957>Question 729957</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How to do the System of equations. It says solve the system of equations\r<BR>\n" );
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document.write( "a) 2x+3y+7z=13                       b) x+3y+5z=20<BR>\n" );
document.write( "   3x+2y-5z=-22                         y-4z=-16<BR>\n" );
document.write( "   5x+7y-3z=-28                         3x+2y+9z=36 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #446340 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=446340\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a) \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%2B3y%2B7z=13 ALIGN=MIDDLE  ALT=\"2x%2B3y%2B7z=13\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 1                         <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B2y-5z=-22 ALIGN=MIDDLE  ALT=\"3x%2B2y-5z=-22\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 2                          <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x%2B7y-3z=-28 ALIGN=MIDDLE  ALT=\"5x%2B7y-3z=-28\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 3  <BR>\n" );
document.write( "________________________\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%2B3y%2B7z=13 ALIGN=MIDDLE  ALT=\"2x%2B3y%2B7z=13\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 1  ..both multiply: eq1 by 3, eq 2 by 2                         <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B2y-5z=-22 ALIGN=MIDDLE  ALT=\"3x%2B2y-5z=-22\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 2    \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x%2B9y%2B21z=39 ALIGN=MIDDLE  ALT=\"6x%2B9y%2B21z=39\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 1                         <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x%2B4y-10z=-44 ALIGN=MIDDLE  ALT=\"6x%2B4y-10z=-44\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 2  .......subtract<BR>\n" );
document.write( "______________________  \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x%2B9y%2B21z-%286x%2B4y-10z%29=39-%28-44%29 ALIGN=MIDDLE  ALT=\"6x%2B9y%2B21z-%286x%2B4y-10z%29=39-%28-44%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x%2B9y%2B21z-6x-4y%2B10z=39%2B44 ALIGN=MIDDLE  ALT=\"6x%2B9y%2B21z-6x-4y%2B10z=39%2B44\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5y%2B31z=83 ALIGN=MIDDLE  ALT=\"5y%2B31z=83\"   DISABLED_style= \"max-width:90%; height:auto;\" >......eq. 1a\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B2y-5z=-22 ALIGN=MIDDLE  ALT=\"3x%2B2y-5z=-22\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 2        ...both multiply: eq2 by 5, eq 3 by 3                   <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x%2B7y-3z=-28 ALIGN=MIDDLE  ALT=\"5x%2B7y-3z=-28\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 3  <BR>\n" );
document.write( "________________________\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x%2B10y-25z=-110 ALIGN=MIDDLE  ALT=\"15x%2B10y-25z=-110\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x%2B21y-9z=-84 ALIGN=MIDDLE  ALT=\"15x%2B21y-9z=-84\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 3  <BR>\n" );
document.write( "________________________.......subtract\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x%2B10y-25z-%2815x%2B21y-9z%29=-110-%28-84%29 ALIGN=MIDDLE  ALT=\"15x%2B10y-25z-%2815x%2B21y-9z%29=-110-%28-84%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x%2B10y-25z-15x-21y%2B9z%29=-110%2B84 ALIGN=MIDDLE  ALT=\"15x%2B10y-25z-15x-21y%2B9z%29=-110%2B84\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-11y-16z=-26 ALIGN=MIDDLE  ALT=\"-11y-16z=-26\"   DISABLED_style= \"max-width:90%; height:auto;\" >......eq. 2a\r<BR>\n" );
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document.write( "take eq. 1a and 2a\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5y%2B31z=83 ALIGN=MIDDLE  ALT=\"5y%2B31z=83\"   DISABLED_style= \"max-width:90%; height:auto;\" >......eq. 1a....both multiply: eq1a by 11, eq 2a by 5\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-11y-16z=-26 ALIGN=MIDDLE  ALT=\"-11y-16z=-26\"   DISABLED_style= \"max-width:90%; height:auto;\" >......eq. 2a<BR>\n" );
document.write( "_____________________________\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=55y%2B341z=913 ALIGN=MIDDLE  ALT=\"55y%2B341z=913\"   DISABLED_style= \"max-width:90%; height:auto;\" >......eq. 1a.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-55y-80z=-130 ALIGN=MIDDLE  ALT=\"-55y-80z=-130\"   DISABLED_style= \"max-width:90%; height:auto;\" >......eq. 2a<BR>\n" );
document.write( "_____________________________...add\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=55y%2B341z%2B%28-55y-80z%29=913%2B%28-130%29 ALIGN=MIDDLE  ALT=\"55y%2B341z%2B%28-55y-80z%29=913%2B%28-130%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=55y%2B341z-55y-80z=913-130 ALIGN=MIDDLE  ALT=\"55y%2B341z-55y-80z=913-130\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=341z-80z=783 ALIGN=MIDDLE  ALT=\"341z-80z=783\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=261z=783 ALIGN=MIDDLE  ALT=\"261z=783\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=783%2F261 ALIGN=MIDDLE  ALT=\"z=783%2F261\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28z=3%29 ALIGN=MIDDLE  ALT=\"highlight%28z=3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "now go back to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=55y%2B341z=913 ALIGN=MIDDLE  ALT=\"55y%2B341z=913\"   DISABLED_style= \"max-width:90%; height:auto;\" >......eq. 1a., plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z ALIGN=MIDDLE  ALT=\"z\"   DISABLED_style= \"max-width:90%; height:auto;\" > and solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=55y%2B341%2A3=913 ALIGN=MIDDLE  ALT=\"55y%2B341%2A3=913\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=55y%2B1023=913 ALIGN=MIDDLE  ALT=\"55y%2B1023=913\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=55y=913-1023 ALIGN=MIDDLE  ALT=\"55y=913-1023\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=55y=-110 ALIGN=MIDDLE  ALT=\"55y=-110\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-110%2F55 ALIGN=MIDDLE  ALT=\"y=-110%2F55\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=-2%29 ALIGN=MIDDLE  ALT=\"highlight%28y=-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "now go back to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%2B3y%2B7z=13 ALIGN=MIDDLE  ALT=\"2x%2B3y%2B7z=13\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 1., plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z ALIGN=MIDDLE  ALT=\"z\"   DISABLED_style= \"max-width:90%; height:auto;\" > and solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%2B3%28-2%29%2B7%2A3=13 ALIGN=MIDDLE  ALT=\"2x%2B3%28-2%29%2B7%2A3=13\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 1\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x-6%2B21=13 ALIGN=MIDDLE  ALT=\"2x-6%2B21=13\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%2B15=13 ALIGN=MIDDLE  ALT=\"2x%2B15=13\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x=13-15 ALIGN=MIDDLE  ALT=\"2x=13-15\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x=-2 ALIGN=MIDDLE  ALT=\"2x=-2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-2%2F2 ALIGN=MIDDLE  ALT=\"x=-2%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=-1%29 ALIGN=MIDDLE  ALT=\"highlight%28x=-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "b) <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B3y%2B5z=20 ALIGN=MIDDLE  ALT=\"x%2B3y%2B5z=20\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 1  <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-4z=-16 ALIGN=MIDDLE  ALT=\"y-4z=-16\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............eq. 2  <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B2y%2B9z=36 ALIGN=MIDDLE  ALT=\"3x%2B2y%2B9z=36\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 3  <BR>\n" );
document.write( "________________________\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B9y%2B15z=60 ALIGN=MIDDLE  ALT=\"3x%2B9y%2B15z=60\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 1  ..multiply: eq1 by 3,                         <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B2y%2B9z=36 ALIGN=MIDDLE  ALT=\"3x%2B2y%2B9z=36\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 3      ...subtract<BR>\n" );
document.write( "______________________  \r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B9y%2B15z-%283x%2B2y%2B9z%29=60-36 ALIGN=MIDDLE  ALT=\"3x%2B9y%2B15z-%283x%2B2y%2B9z%29=60-36\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B9y%2B15z-3x-2y-9z=24 ALIGN=MIDDLE  ALT=\"3x%2B9y%2B15z-3x-2y-9z=24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7y%2B6z=24 ALIGN=MIDDLE  ALT=\"7y%2B6z=24\"   DISABLED_style= \"max-width:90%; height:auto;\" >.........................eq. 1a\r<BR>\n" );
document.write( "\n" );
document.write( "take<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7y%2B6z=24 ALIGN=MIDDLE  ALT=\"7y%2B6z=24\"   DISABLED_style= \"max-width:90%; height:auto;\" >.........................eq. 1a<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-4z=-16 ALIGN=MIDDLE  ALT=\"y-4z=-16\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............eq. 2 ............multiply by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7 ALIGN=MIDDLE  ALT=\"7\"   DISABLED_style= \"max-width:90%; height:auto;\" > and subtract<BR>\n" );
document.write( "______________________________\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7y%2B6z=24 ALIGN=MIDDLE  ALT=\"7y%2B6z=24\"   DISABLED_style= \"max-width:90%; height:auto;\" >.........................eq. 1a<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7y-28z=-112 ALIGN=MIDDLE  ALT=\"7y-28z=-112\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............eq. 2<BR>\n" );
document.write( "____________________________subtract<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7y%2B6z-%287y-28z%29=24-%28-112%29 ALIGN=MIDDLE  ALT=\"7y%2B6z-%287y-28z%29=24-%28-112%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7y%2B6z-7y%2B28z=24%2B112 ALIGN=MIDDLE  ALT=\"7y%2B6z-7y%2B28z=24%2B112\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=34z=136 ALIGN=MIDDLE  ALT=\"34z=136\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=136%2F34 ALIGN=MIDDLE  ALT=\"z=136%2F34\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28z=4%29 ALIGN=MIDDLE  ALT=\"highlight%28z=4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "go back to\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-4z=-16 ALIGN=MIDDLE  ALT=\"y-4z=-16\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............eq. 2 , plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z ALIGN=MIDDLE  ALT=\"z\"   DISABLED_style= \"max-width:90%; height:auto;\" > and solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-4%2A4=-16 ALIGN=MIDDLE  ALT=\"y-4%2A4=-16\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-16=-16 ALIGN=MIDDLE  ALT=\"y-16=-16\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-16%2B16 ALIGN=MIDDLE  ALT=\"y=-16%2B16\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=0%29 ALIGN=MIDDLE  ALT=\"highlight%28y=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "go to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B3y%2B5z=20 ALIGN=MIDDLE  ALT=\"x%2B3y%2B5z=20\"   DISABLED_style= \"max-width:90%; height:auto;\" >........eq. 1  plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z ALIGN=MIDDLE  ALT=\"z\"   DISABLED_style= \"max-width:90%; height:auto;\" > and solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B3%2A0%2B5%2A4=20 ALIGN=MIDDLE  ALT=\"x%2B3%2A0%2B5%2A4=20\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B0%2B20=20 ALIGN=MIDDLE  ALT=\"x%2B0%2B20=20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=20-20 ALIGN=MIDDLE  ALT=\"x=20-20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=0%29 ALIGN=MIDDLE  ALT=\"highlight%28x=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );