document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1138225>Question 1138225</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the system by back substitution\r<BR>\n" );
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document.write( "4x+8y+2z+6w=-4<BR>\n" );
document.write( "-3y-18z-6w=-24<BR>\n" );
document.write( "-5z-5w=-10<BR>\n" );
document.write( "5w=15\r<BR>\n" );
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document.write( "i solved from the bottom and got w=3 and kept plugging into each equation and i ended up with w=3,z=-1,y=14/3 and x=-43/3\r<BR>\n" );
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document.write( "but it says my answers are wrong help please.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #756050 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=756050\">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=w=3 ALIGN=MIDDLE  ALT=\"w=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5z%2B5w=10 ALIGN=MIDDLE  ALT=\"5z%2B5w=10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z%2Bw=2 ALIGN=MIDDLE  ALT=\"z%2Bw=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=2-w ALIGN=MIDDLE  ALT=\"z=2-w\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=2-3 ALIGN=MIDDLE  ALT=\"z=2-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28z=-1%29 ALIGN=MIDDLE  ALT=\"highlight_green%28z=-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3y%2B18z%2B6w=24 ALIGN=MIDDLE  ALT=\"3y%2B18z%2B6w=24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%2B6z%2B2w=8 ALIGN=MIDDLE  ALT=\"y%2B6z%2B2w=8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-6%2B6=8 ALIGN=MIDDLE  ALT=\"y-6%2B6=8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28y=8%29 ALIGN=MIDDLE  ALT=\"highlight_green%28y=8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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