document.write( "Question 1066538: solve the following system of linear equations x+4y-z=3,2x+7y-2z=5,-x-5y+2z=-7 by computing the inverse of the coifficent matrix \n" ); document.write( "
Algebra.Com's Answer #681797 by Fombitz(32388)\"\" \"About 
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\"A=%28matrix%283%2C3%2C%0D%0A1%2C4%2C-1%2C%0D%0A2%2C7%2C-2%2C%0D%0A-1%2C-5%2C2%29%29\"
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\n" ); document.write( "\"x=A%5E%28-1%29%2Ab\"
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\n" ); document.write( "\"x=%28matrix%283%2C1%2C-4%2C1%2C-3%29%29\"\r
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