document.write( "Question 153117: 3x-4y=7
\n" ); document.write( "2x-y=3\r
\n" ); document.write( "\n" ); document.write( "then
\n" ); document.write( "3x-4y=7
\n" ); document.write( "-8x+4y=-12\r
\n" ); document.write( "\n" ); document.write( "adding\r
\n" ); document.write( "\n" ); document.write( "-5x=-5 then x=1 then 3-4y=7 then 4y=-4 then y=-1
\n" ); document.write( "Solution: x=1,y=-1
\n" ); document.write( "
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Algebra.Com's Answer #112594 by oscargut(2103)\"\" \"About 
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3x-4y=7
\n" ); document.write( "2x-y=3\r
\n" ); document.write( "\n" ); document.write( "then
\n" ); document.write( "3x-4y=7
\n" ); document.write( "-8x+4y=-12\r
\n" ); document.write( "\n" ); document.write( "adding\r
\n" ); document.write( "\n" ); document.write( "-5x=-5 then x=1 then 3-4y=7 then 4y=-4 then y=-1
\n" ); document.write( "Solution: x=1,y=-1
\n" ); document.write( "
\n" ); document.write( "
\n" );