document.write( "Question 463954: I need help with system of equations with 3 variables.
\n" ); document.write( "1. Solve x + y = z
\n" ); document.write( "-2x – 4y + z = -31
\n" ); document.write( "x + y + z = 22\r
\n" ); document.write( "\n" ); document.write( "2. 3x – y + 2z = 6
\n" ); document.write( "-x + y = 2
\n" ); document.write( "x – 2z = –5\r
\n" ); document.write( "\n" ); document.write( "3. Solve 2x + 3y + 3z = 5
\n" ); document.write( "4x + 5y + 3z = 13
\n" ); document.write( "3x + 2y – 2z = 13
\n" ); document.write( "

Algebra.Com's Answer #317806 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
What sort of help?
\n" ); document.write( "What have you tried?
\n" ); document.write( "
\n" ); document.write( "
\n" );