document.write( "Question 203844: solve using the elimination method.\r
\n" ); document.write( "\n" ); document.write( " x-y=3
\n" ); document.write( " -3x+y=7
\n" ); document.write( "

Algebra.Com's Answer #153797 by rfer(16322)\"\" \"About 
You can put this solution on YOUR website!
x=y+3
\n" ); document.write( "-3(y+3)+y=7
\n" ); document.write( "-3y-9+y=7
\n" ); document.write( "-2y=16
\n" ); document.write( "y=-8
\n" ); document.write( "-------------
\n" ); document.write( "x-y=3
\n" ); document.write( "x+8=3
\n" ); document.write( "x=-5
\n" ); document.write( "---------------
\n" ); document.write( "-3x+y=7
\n" ); document.write( "-3(-5)-8=7
\n" ); document.write( "15-8=7
\n" ); document.write( "
\n" );