document.write( "Question 716792: 9x-2y=15
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document.write( "4x+3y=-5
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document.write( "Solve by elimination \n" );
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Algebra.Com's Answer #439980 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! 9x-2y=15 MULTIPLY BY 3 \n" ); document.write( "4x+3y=-5 MULTIPLY BY 2 & ADD. \n" ); document.write( "27X-6Y=45 \n" ); document.write( "8X+6Y=-10 \n" ); document.write( "-------------- \n" ); document.write( "35X=35 \n" ); document.write( "X=35/35 \n" ); document.write( "X=1 ANS. \n" ); document.write( "9*1-2Y=15 \n" ); document.write( "9-2Y=15 \n" ); document.write( "-2Y=15-9 \n" ); document.write( "-2Y=6 \n" ); document.write( "Y=6/-2 \n" ); document.write( "Y=-3 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "4*1+3*-3=-5 \n" ); document.write( "4-9=-5 \n" ); document.write( "-5=-5 \n" ); document.write( " |