document.write( "Question 297192: Solve any way you can:\r
\n" ); document.write( "\n" ); document.write( "3x - y - 2z = 11
\n" ); document.write( "x – 2y + 3z = 12
\n" ); document.write( "x + y - 2z = 5\r
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\n" ); document.write( "\n" ); document.write( "Eric \n" ); document.write( "
Algebra.Com's Answer #214013 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Using matrix methods,
\n" ); document.write( "[A][x]=[b]
\n" ); document.write( "[x]=[A]inv[b]
\n" ); document.write( ".
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\n" ); document.write( "[A]=\"%28matrix%283%2C3%2C3%2C-1%2C-2%2C1%2C-2%2C3%2C1%2C1%2C-2%29%29\"
\n" ); document.write( "[x]=\"%28matrix%283%2C1%2Cx%2Cy%2Cz%29%29\"
\n" ); document.write( "[b]=\"%28matrix%283%2C1%2C11%2C12%2C5%29%29\"
\n" ); document.write( "det[A]= -8
\n" ); document.write( "[A]inv=\"%28-1%2F8%29%2A%28matrix%283%2C3%2C1%2C-4%2C-7%2C5%2C-4%2C-11%2C3%2C-4%2C-5%29%29%0D%0A\"
\n" ); document.write( "and finally,
\n" ); document.write( "[x]=\"%28matrix%283%2C1%2C9%2C6%2C5%29%29\" \n" ); document.write( "
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