document.write( "Question 435713: Solve by the elimination method.
\n" ); document.write( "2r-9s=-70
\n" ); document.write( "9r+2s=25
\n" ); document.write( "

Algebra.Com's Answer #301607 by jorel1380(3719)\"\" \"About 
You can put this solution on YOUR website!
2r-9s=-70
\n" ); document.write( "9r+2s=25
\n" ); document.write( "-------------
\n" ); document.write( "_4r-18s=-140
\n" ); document.write( "81r+18s=+225
\n" ); document.write( "85r=85
\n" ); document.write( "r=1
\n" ); document.write( "s=8.
\n" ); document.write( "
\n" );