document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=394042>Question 394042</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve using matrices<BR>\n" );
document.write( "x-2y+4z=-8<BR>\n" );
document.write( "2x+2y-z=11<BR>\n" );
document.write( "x+y-2z=10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #279560 by </B><A HREF=/tutors/aboutme.mpl?userid=pie90010><B>pie90010(44)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=pie90010><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=279560\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ahhh I LOVE MATRICES :D\r<BR>\n" );
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document.write( "so just make your equation into a matrix first\r<BR>\n" );
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document.write( "[ 1  -2   4]   [x]       [-8]<BR>\n" );
document.write( "| 2   2  -1|   |y|   =   |11|<BR>\n" );
document.write( "[ 1   1  -2]   [z]       [10]\r<BR>\n" );
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document.write( "Let ^ = A              Let ^ = B\r<BR>\n" );
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document.write( "you CANT divide matrices, so multiply by the inverse, same thing right? :D\r<BR>\n" );
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document.write( "find the inverse of matrix A first, you can simply do this with a calculator<BR>\n" );
document.write( "A^-1 * B \r<BR>\n" );
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document.write( "And you'll find your answers will be\r<BR>\n" );
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document.write( "x = 4<BR>\n" );
document.write( "y = 0<BR>\n" );
document.write( "z = -3 </SPAN>\n" );
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