document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=362519>Question 362519</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How Do you solve this Three-variable equation by substitution?\r<BR>\n" );
document.write( "\n" );
document.write( "{13=3x-y<BR>\n" );
document.write( "{4y-3x+2z=-3<BR>\n" );
document.write( "{z=2x-4y<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #258382 by </B><A HREF=/tutors/aboutme.mpl?userid=HasanSahin><B>HasanSahin(52)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=HasanSahin><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=HasanSahin><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=258382\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+13=3x-y+++++ ALIGN=MIDDLE  ALT=\"+13=3x-y+++++\"   DISABLED_style= \"max-width:90%; height:auto;\" >  <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4y-3x%2B2z=-3+ ALIGN=MIDDLE  ALT=\"+4y-3x%2B2z=-3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+z=2x-4y+++++ ALIGN=MIDDLE  ALT=\"+z=2x-4y+++++\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "Put everything in order such that;\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+13=+3x+-+y+++++ ALIGN=MIDDLE  ALT=\"+13=+3x+-+y+++++\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-3=-3x+%2B4y+%2B2z+ ALIGN=MIDDLE  ALT=\"+-3=-3x+%2B4y+%2B2z+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=++0=+2x+-4y+-z++ ALIGN=MIDDLE  ALT=\"++0=+2x+-4y+-z++\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "Multiply the third equation by 2 and you'll get;\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+13=+3x+-+y+++++ ALIGN=MIDDLE  ALT=\"+13=+3x+-+y+++++\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-3=-3x+%2B4y+%2B2z+ ALIGN=MIDDLE  ALT=\"+-3=-3x+%2B4y+%2B2z+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=++0=+4x+-8y+-2z++ ALIGN=MIDDLE  ALT=\"++0=+4x+-8y+-2z++\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "Sum up 2nd and 3rd equations and you'll get;\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+13=+3x+-+y++ ALIGN=MIDDLE  ALT=\"+13=+3x+-+y++\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-3=+x+-+4y++ ALIGN=MIDDLE  ALT=\"+-3=+x+-+4y++\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "Multiply the first equation by -4 and you'll get;\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-52=-12x+%2B4y++ ALIGN=MIDDLE  ALT=\"-52=-12x+%2B4y++\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-3=++x++-4y++ ALIGN=MIDDLE  ALT=\"+-3=++x++-4y++\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "Sum up these equations and you'll get;\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-55=-11x+ ALIGN=MIDDLE  ALT=\"-55=-11x+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "Then you get<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+5+ ALIGN=MIDDLE  ALT=\"+x+=+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" >; for example put \"x\" into \"-3 = x -4y\" equation,you'll get;\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+y+=2+ ALIGN=MIDDLE  ALT=\"+y+=2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >;for example if you put \"y and x\" into \"0= 2x -4y -z\" equation,you'll get;\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+z=2+ ALIGN=MIDDLE  ALT=\"+z=2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "RF.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );