document.write( "Question 1136773: Solve the system using the elimination method. Check the solution by substituting into both of the original equations.\r
\n" ); document.write( "\n" ); document.write( "x + 3y = 11
\n" ); document.write( "3x + 3y = −21
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #754585 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Subtract 1 from the other.
\n" ); document.write( "
\n" ); document.write( "
\n" );