document.write( "Question 175229: System of equations\r
\n" ); document.write( "\n" ); document.write( "-4x+4y-2z=-8
\n" ); document.write( "-3x-y+4z=0
\n" ); document.write( "2x-2y+3z=-4\r
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\n" ); document.write( "\n" ); document.write( "I dont understand the steps to this i always come out with a diffrent answer then one of the choices. So if u could please help. Thanks \n" ); document.write( "

Algebra.Com's Answer #130321 by Edwin McCravy(20086) $\"\"$ $\"About$

You can put this solution on YOUR website!
System of equations
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\n" ); document.write( "\n" ); document.write( "I dont understand the steps to this i always come out with a diffrent answer then one of the choices. So if u could please help. Thanks
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document.write( "There are half a dozen ways to solve a system of equations:\r\n" );
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document.write( "1. elimination and substitution\r\n" );
document.write( "2. triangular method\r\n" );
document.write( "3. Cramer's rule \r\n" );
document.write( "4. Gaussian elimination using augmented matrices with back-substitution\r\n" );
document.write( "5. Gaussian elimination using the row-reduced-echelon form\r\n" );
document.write( "6. the AX=B matrix method using the inverse matrix.\r\n" );
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document.write( "Please post again telling what method you are studying. and\r\n" );
document.write( "we can help you with that method.\r\n" );
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document.write( "The solution is \r\n" );
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document.write( "Edwin

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