document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=210102>Question 210102</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2x-3y+2z=-1<BR>\n" );
document.write( "x+2y=-5<BR>\n" );
document.write( "2x-y+7z=-8\r<BR>\n" );
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document.write( "the answer says that it should be 6,1,7 but i can't figure out how they got those answers. Please Help!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #158766 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=158766\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Are you sure that the answer provided is (6,1,7)? If this is what the book is telling you, then it is wrong. Why? The ordered triple (6,1,7) means that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=6 ALIGN=MIDDLE  ALT=\"x=6\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=1 ALIGN=MIDDLE  ALT=\"y=1\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=7 ALIGN=MIDDLE  ALT=\"z=7\"   DISABLED_style= \"max-width:90%; height:auto;\" >. These values must satisfy all three equations. \r<BR>\n" );
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document.write( "However, if we pick the second equation and plug in the given values, we get:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2B2%281%29=-5 ALIGN=MIDDLE  ALT=\"6%2B2%281%29=-5\"   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=6%2B2=-5 ALIGN=MIDDLE  ALT=\"6%2B2=-5\"   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=8=-5 ALIGN=MIDDLE  ALT=\"8=-5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "which is clearly NOT true. So either the book has the wrong answer, or there's a typo in the problem. Either way, I'd double check everything. </SPAN>\n" );
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