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 \n" );
document.write( "
Algebra.Com's Answer #484619 by tommyt3rd(5050)![]() ![]() 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]] \n" ); document.write( " |