document.write( "Question 384097: How would u solve this problem by using inverse matrix:
\n" ); document.write( "17x+4y=76
\n" ); document.write( "21x+5y=94 \n" ); document.write( "

Algebra.Com's Answer #271889 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
[A]= $\"%28matrix%282%2C2%2C17%2C4%2C21%2C5%29%29\"$
\n" ); document.write( "[x]= $\"%28matrix%282%2C1%2Cx%2Cy%29%29\"$
\n" ); document.write( "[b]= $\"%28matrix%282%2C1%2C76%2C94%29%29\"$
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\n" ); document.write( "[A][x]=[b]
\n" ); document.write( "[x]=[A]inv[b]
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\n" ); document.write( "det[A]= $\"17%2A5-21%2A4=1\"$
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\n" ); document.write( "[A]inv= $\"%28matrix%282%2C2%2C5%2C-4%2C-21%2C17%29%29\"$
\n" ); document.write( "[x]=[A]inv[b]== $\"%28matrix%282%2C2%2C5%2C-4%2C-21%2C17%29%29%2A%28matrix%282%2C1%2C76%2C94%29%29\"$
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\n" ); document.write( "[x]= $\"%28matrix%282%2C1%2C4%2C2%29%29\"$ \n" ); document.write( "

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