document.write( "Question 788950: solve the following system of equations by using the inverse of the coefficient matrix.\r
\n" ); document.write( "\n" ); document.write( "x+2y=6
\n" ); document.write( "-4x+4y=24
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Algebra.Com's Answer #484619 by tommyt3rd(5050)\"\" \"About 
You can put this solution on YOUR website!
A=[[1 2] [ -4 4]]\r
\n" ); document.write( "\n" ); document.write( "inv(A)= [[1/3 -1/6] [ 1/3 1/12]]\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "[[x] [y]] =
\n" ); document.write( "inv(A) [[6] [24]] =
\n" ); document.write( "[[1/3 -1/6] [ 1/3 1/12][[6] [24]] =
\n" ); document.write( "[[-2] [4]]
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