document.write( "Question 466167: solve the following system using Gauss-Jordan elimination
\n" ); document.write( " -8x1 -4x2 = -32
\n" ); document.write( " 2x1 + x2 =8
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #319525 by robertb(5830) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%28matrix%282%2C3%2C+-8%2C-4%2C-32%2C2%2C1%2C8%29%29\"$
\n" ); document.write( "~ $\"%28matrix%282%2C3%2C+2%2C1%2C8%2C2%2C1%2C8%29%29\"$ , after -R1/4.\r
\n" ); document.write( "\n" ); document.write( "~ $\"%28matrix%282%2C3%2C+2%2C1%2C8%2C0%2C0%2C0%29%29\"$ , after -R1 + R2\r
\n" ); document.write( "\n" ); document.write( "~ $\"%28matrix%282%2C3%2C+1%2C1%2F2%2C4%2C0%2C0%2C0%29%29\"$ , after R1/2\r
\n" ); document.write( "\n" ); document.write( "The matrix is in reduced row echelon form. This says that the system is dependent, and the solution set is {(x, y)| x + y/2 = 4}. \n" ); document.write( "

\n" );