document.write( "Question 732096: Solve the following system of equations by using the inverse of the coefficient matrix:
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Algebra.Com's Answer #447527 by Edwin McCravy(20060) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "  x - 2y + 3z      =  13\r\n" );
document.write( "       y -  z +  w = -11\r\n" );
document.write( "-3x + 3y - 2z + 5w =  -6\r\n" );
document.write( "      2y - 3z +  w = -13\r\n" );
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document.write( " 1x - 2y + 3z + 0w =  13\r\n" );
document.write( " 0x + 1y - 1z + 1w = -11\r\n" );
document.write( "-3x + 3y - 2z + 5w =  -6\r\n" );
document.write( " 0x + 2y - 3z + 1w = -13\r\n" );
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document.write( "The cefficient matrix is thi 4x4 matrix:\r\n" );
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document.write( "Find its inverse using a TI-83 or better calculator.\r\n" );
document.write( "That's this 4x4 matrix\r\n" );
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document.write( "Multiply that by the 4x1 column vector or matrix\r\n" );
document.write( "from the numbers on the right of the system:\r\n" );
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document.write( "(x,y,z,w) = (-9,-38,-18,9)\r\n" );
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document.write( "Edwin

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