document.write( "Question 241076: 3x-y+2z=-7
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Algebra.Com's Answer #176546 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
\"system%283x-y%2B2z=-7%2C%0D%0Ax%2B2y%2B3z=0%2C%0D%0A-2x%2By-3z=-1%29\"
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document.write( "There are many methods for solving systems, and\r\n" );
document.write( "I don't know which way you are studying. I don't want \r\n" );
document.write( "to waste time solving them all the different \r\n" );
document.write( "possible ways which you aren't studying, so I'll just\r\n" );
document.write( "give the solution:\r\n" );
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document.write( "(x,y,z) = (-5,-2,3)\r\n" );
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document.write( "If you want us to help you with solving it, please\r\n" );
document.write( "tell us which of the many ways you are studying, probably\r\n" );
document.write( "one of these:\r\n" );
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document.write( "1. Substitution\r\n" );
document.write( "2. Elimination\r\n" );
document.write( "3. Cramer's rule (determinants)\r\n" );
document.write( "4. Triangular method with back substitution\r\n" );
document.write( "5. Partial Gaussian elimination with matrices and back substitution \r\n" );
document.write( "6. Complete Gaussian elimination with matrices\r\n" );
document.write( "7. The inverse matrix method, sometimes called the AX=B method\r\n" );
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document.write( "Edwin
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