document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1131309>Question 1131309</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the system of equations using matrices. Use Gaussian elimination with back-substitution. <BR>\n" );
document.write( "x + y + z      =      -5<BR>\n" );
document.write( "x - y + 3z     =     -1<BR>\n" );
document.write( "4x + y + z    =     -2<BR>\n" );
document.write( " </SPAN>\n" );
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