document.write( "Question 884623: solve x + 3y + z = 1 2x – y – z = 6
\n" ); document.write( " 5x + y + z = 1
\n" ); document.write( "using matrices.
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Algebra.Com's Answer #534475 by Fombitz(32388)\"\" \"About 
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\n" ); document.write( "\"A=%28matrix%283%2C3%2C1%2C3%2C1%2C2%2C-1%2C-1%2C5%2C1%2C1%29%29\"
\n" ); document.write( "\"abs%28A%29=-14\"
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\n" ); document.write( "\"A%5Bx%5D=%28matrix%283%2C3%2C1%2C3%2C1%2C6%2C-1%2C-1%2C1%2C1%2C1%29%29\"
\n" ); document.write( "\"abs%28A%5Bx%5D%29=-14\"
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\n" ); document.write( "\"A%5By%5D=%28matrix%283%2C3%2C1%2C3%2C1%2C2%2C6%2C-1%2C5%2C1%2C1%29%29\"
\n" ); document.write( "\"abs%28A%5By%5D%29=-28\"
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\n" ); document.write( "\"A%5Bz%5D=%28matrix%283%2C3%2C1%2C3%2C1%2C2%2C-1%2C6%2C5%2C1%2C1%29%29\"
\n" ); document.write( "\"abs%28A%5Bz%5D%29=-84\"
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\n" ); document.write( "\"x=abs%28A%5Bx%5D%29%2Fabs%28A%29=%28-14%29%2F%28-14%29=1\"
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\n" ); document.write( "\"y=abs%28A%5By%5D%29%2Fabs%28A%29=%28-28%29%2F%28-14%29=2\"
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\n" ); document.write( "\"z=abs%28A%5Bz%5D%29%2Fabs%28A%29=%2884%29%2F%28-14%29=6\"
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