document.write( "Question 272065: Please solve this using the elimination method.\r
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document.write( "9x + 2y = 2
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document.write( "21x + 6y = 4 \n" );
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Algebra.Com's Answer #199068 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 9x+2y=2 multiply by -3 & add. \n" ); document.write( "21x+6y=4 \n" ); document.write( "-27x-6y=-6 \n" ); document.write( "--------------- \n" ); document.write( "-6x=-2 \n" ); document.write( "x=-2/-6 \n" ); document.write( "x=1/3 ans. \n" ); document.write( "9*1/3+2y=2 \n" ); document.write( "3+2y=2 \n" ); document.write( "2y=2-3 \n" ); document.write( "2y=-1 \n" ); document.write( "y=-1/2 ans. \n" ); document.write( "Proof: \n" ); document.write( "21*1/3+6*-1/2=4 \n" ); document.write( "7-3=4 \n" ); document.write( "4=4 \n" ); document.write( " \n" ); document.write( " |