document.write( "Question 169492: Solve each system by addition:\r
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document.write( "2x=2-y
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document.write( "3x+y=-1 \n" );
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Algebra.Com's Answer #124942 by checkley77(12844) ![]() You can put this solution on YOUR website! 2x=2-y \n" ); document.write( "2x+y=2 \n" ); document.write( "-(3x+y=-1) subtract this equation from the other equation. \n" ); document.write( "---------------- \n" ); document.write( "-x=3 \n" ); document.write( "x=-3 ans. \n" ); document.write( "2*-3=2-y \n" ); document.write( "-6=2-y \n" ); document.write( "y=2+6 \n" ); document.write( "y=8 ans. \n" ); document.write( " \n" ); document.write( " |