document.write( "Question 83456: solve each system of equations.Let Z be the parameter.\r
\n" ); document.write( "\n" ); document.write( "x + 2y +3z =11
\n" ); document.write( "2x - y + z = 2 \n" ); document.write( "
Algebra.Com's Answer #59964 by stanbon(75887)\"\" \"About 
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solve each system of equations.Let Z be the parameter.\r
\n" ); document.write( "\n" ); document.write( "x + 2y +3z =11
\n" ); document.write( "2x - y + z = 2
\n" ); document.write( "---------------
\n" ); document.write( "x + 2y = -3z+11
\n" ); document.write( "2x - y = -z+2
\n" ); document.write( "----------------
\n" ); document.write( "Let A be the coefficient matrix of x and y
\n" ); document.write( "Then A^-1 = [.2 .4]
\n" ); document.write( " [.4 -.2]
\n" ); document.write( "--------
\n" ); document.write( "Let B = [-3z+11]
\n" ); document.write( " [-z+2 ]
\n" ); document.write( "-------------------\r
\n" ); document.write( "\n" ); document.write( "Then [A^-1][B]= (1/5) [-3z+11-2z+4]
\n" ); document.write( " [-6z+22+z-2 ]\r
\n" ); document.write( "\n" ); document.write( "=[-z+3]
\n" ); document.write( " [-z+4]
\n" ); document.write( "===============
\n" ); document.write( "So x= -z+3 and y=-z+4
\n" ); document.write( "=================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "------------------------ \n" ); document.write( "
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