document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=321336>Question 321336</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need some help with Gaussian elimination for equation systems:\r<BR>\n" );
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document.write( "x+y-z=3<BR>\n" );
document.write( "-x+2y+5z=-17<BR>\n" );
document.write( "3x+5y+4z=-22\r<BR>\n" );
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document.write( "x=      y=        z= </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #230241 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=230241\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> use the -z in the 1st eqn to eliminate the z terms in the 2nd and 3rd eqns\r<BR>\n" );
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document.write( "multiply 1st by 5 and add to second ___ (A) ___ 4x + 7y = -2\r<BR>\n" );
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document.write( "multiply 1st by 4 and add to 3rd ___ (B) ___ 7x + 9y = -10\r<BR>\n" );
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document.write( "multiply (A) by -7 and add to 4 times (B) ___ -13y = -26 ___ y = 2\r<BR>\n" );
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document.write( "substitute to find x ___ 4x + 7(2) = -2 ___ x = -4\r<BR>\n" );
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document.write( "substitute to find z ___ (-4) + (2) - z = 3 ___ z = -5 </SPAN>\n" );
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