document.write( "Question 297161: Solve each system by elimination:\r
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document.write( " –x + 3y = 6
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document.write( " x – 9y = 9\r
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document.write( "Any help would be appreciated on this problem\r
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document.write( "Eric \n" );
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Algebra.Com's Answer #213989 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! –x + 3y = 6 \n" ); document.write( " x – 9y = 9 add. \n" ); document.write( "--------------------- \n" ); document.write( "-6y=15 \n" ); document.write( "y=15/-6 \n" ); document.write( "y=-2.5 ans. \n" ); document.write( "-x+3*-2.5=6 \n" ); document.write( "-x-7.5=6 \n" ); document.write( "-x=6+7.5 \n" ); document.write( "-x=13.5 \n" ); document.write( "x=13.5/-1 \n" ); document.write( "x=-13.5 ans. \n" ); document.write( "Proof: \n" ); document.write( "-13.5-9*-2.5=9 \n" ); document.write( "-13.5+22.5=9 \n" ); document.write( "9=9 \n" ); document.write( " \n" ); document.write( " |