document.write( "Question 313934: Hello,
\n" ); document.write( "I am trying for hours to find the solution for the following equation.
\n" ); document.write( "Unfortunately I am getting always a different answer. Can anybody help me solve this problem?\r
\n" ); document.write( "\n" ); document.write( "x+y+z+u=1
\n" ); document.write( "2x+3y-4z+5u=2
\n" ); document.write( "3x-4y-3z+6u=0\r
\n" ); document.write( "\n" ); document.write( "Thanks a million in advance \n" ); document.write( "
Algebra.Com's Answer #224518 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "\"system%28x%2By%2Bz%2Bu=1%2C%0D%0A2x%2B3y-4z%2B5u=2%2C%0D%0A3x-4y-3z%2B6u=0%29\" \r\n" );
document.write( "\r\n" );
document.write( "The augmented matrix is:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "-2*R1+R2->R2\r\n" );
document.write( "-3*R1+R3->R3\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "-1*R2+R1->R1\r\n" );
document.write( " 7*R2+R3->R3\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\"-1%2F48\"*R3->R3\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "-7*R3+R1->R1\r\n" );
document.write( " 6*R3+R2->R2\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Rewrite as this system of equations:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Simplify:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Solve for x, y and z\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Let \"u=k\", where k can represent any arbitrary\r\n" );
document.write( "value, and we have this solution:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );