document.write( "Question 1117718: Use row operations to solve the system.\r
\n" ); document.write( "\n" ); document.write( "x+y-z=4
\n" ); document.write( "3x-y+z=-12
\n" ); document.write( "x-4y+2z=-52\r
\n" ); document.write( "\n" ); document.write( "The system has exactly one solution. The solution is:_,_,_ \n" ); document.write( "
Algebra.Com's Answer #732838 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "
\r\n" );
document.write( "1   1  -1    4\r\n" );
document.write( "3  -1   1  -12\r\n" );
document.write( "1  -4   2  -52\r\n" );
document.write( "\r\n" );
document.write( "-3R1 + R2 -> R2\r\n" );
document.write( "\r\n" );
document.write( "1   1  -1    4\r\n" );
document.write( "0  -4   4  -24\r\n" );
document.write( "1  -4   2  -52\r\n" );
document.write( "\r\n" );
document.write( "-R1 + R3 -> R3\r\n" );
document.write( " \r\n" );
document.write( "1   1  -1    4\r\n" );
document.write( "0  -4   4  -24\r\n" );
document.write( "0  -5   3  -56\r\n" );
document.write( "\r\n" );
document.write( "-R2/4 -> R2\r\n" );
document.write( "\r\n" );
document.write( "1   1  -1    4\r\n" );
document.write( "0   1  -1    6\r\n" );
document.write( "0  -5   3  -56\r\n" );
document.write( "\r\n" );
document.write( "5R2 + R3 -> R3\r\n" );
document.write( "\r\n" );
document.write( "1   1  -1    4\r\n" );
document.write( "0   1  -1    6\r\n" );
document.write( "0   0  -2  -26\r\n" );
document.write( "\r\n" );
document.write( "-R3/2 -> R3\r\n" );
document.write( "\r\n" );
document.write( "1   1  -1    4\r\n" );
document.write( "0   1  -1    6\r\n" );
document.write( "0   0   1   13\r\n" );
document.write( "\r\n" );
document.write( "R3 + R1 -> R1\r\n" );
document.write( "R3 + R2 -> R2\r\n" );
document.write( "\r\n" );
document.write( "1   1   0   17\r\n" );
document.write( "0   1   0   19\r\n" );
document.write( "0   0   1   13\r\n" );
document.write( "\r\n" );
document.write( "-R2 + R1 -> R1\r\n" );
document.write( "\r\n" );
document.write( "1   0   0   -2\r\n" );
document.write( "0   1   0   19\r\n" );
document.write( "0   0   1   13\r\n" );
document.write( "\r\n" );
document.write( "
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "The single element of the solution set is the ordered triple \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "John
\n" ); document.write( "
\n" ); document.write( "My calculator said it, I believe it, that settles it
\n" ); document.write( "
\n" ); document.write( " \n" ); document.write( "
\n" );