document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=226538>Question 226538</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello, I am trying to help my daughter with her algebra homework, but Im a little rusty myself. I've been able to help her understand a few of the problems but these have stumped the both of us. Help would be greatly appreciated! Thank you!\r<BR>\n" );
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document.write( "- Burg family\r<BR>\n" );
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document.write( "linear equation by any convenient method\r<BR>\n" );
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document.write( "2x + y - 3z = 5<BR>\n" );
document.write( " x + y - 3z = 1<BR>\n" );
document.write( "      x - z = 4\r<BR>\n" );
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document.write( "linear equation by method of elimination\r<BR>\n" );
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document.write( "  9x - 2y = 7<BR>\n" );
document.write( "-18x + 4y = -7\r<BR>\n" );
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document.write( "linear equation by method of elimination\r<BR>\n" );
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document.write( "-3x - y = -3<BR>\n" );
document.write( " x + 2y = -4\r<BR>\n" );
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document.write( "linear equation by any convenient method\r<BR>\n" );
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document.write( "  x - 2y = -13<BR>\n" );
document.write( "-2x - 2y = -4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #168674 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=168674\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x + y - 3z = 5<BR>\n" );
document.write( "x + y - 3z = 1<BR>\n" );
document.write( "x - z = 4<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "2x + y - 3z = 5<BR>\n" );
document.write( "x + y - 3z = 1<BR>\n" );
document.write( "-------------- Subtract<BR>\n" );
document.write( "x = 4<BR>\n" );
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document.write( "x - z = 4<BR>\n" );
document.write( "z = 0<BR>\n" );
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document.write( "x + y - 3z = 1<BR>\n" );
document.write( "4 + y = 1<BR>\n" );
document.write( "y = -3<BR>\n" );
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document.write( "linear equation by method of elimination <BR>\n" );
document.write( "9x - 2y = 7 times -2 --> -18x + 4y = -14<BR>\n" );
document.write( "-18x + 4y = -7<BR>\n" );
document.write( "These are inconsistent, no solution.  It can't equal both -7 and -14<BR>\n" );
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document.write( "linear equation by method of elimination <BR>\n" );
document.write( "-3x - y = -3 times 2 --> -6x - 2y = -6<BR>\n" );
document.write( "x + 2y = -4 <BR>\n" );
document.write( "-6x - 2y = -6<BR>\n" );
document.write( "-----------------  Add<BR>\n" );
document.write( "-5x = -10<BR>\n" );
document.write( "x = 2<BR>\n" );
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document.write( "2 + 2y = -4<BR>\n" );
document.write( "y = -3<BR>\n" );
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document.write( "linear equation by any convenient method <BR>\n" );
document.write( "x - 2y = -13<BR>\n" );
document.write( "-2x - 2y = -4 <BR>\n" );
document.write( "----------------- Subtract<BR>\n" );
document.write( "3x = -9<BR>\n" );
document.write( "x = -3<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "y = 5<BR>\n" );
document.write( " </SPAN>\n" );
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