document.write( "Question 111731: Use elimination to solve: 4x-y=-3
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document.write( " 5x+2y=-20
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Algebra.Com's Answer #81511 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! 5X+2Y=-20 NOW MULTIPLY THE OTHERE EQUATION BY 2 & ADD THEM: \n" ); document.write( "8X-2Y=-6 \n" ); document.write( "-------------------- \n" ); document.write( "13X=-26 \n" ); document.write( "X=-26/13 \n" ); document.write( "X=-2 ANSWER. \n" ); document.write( "5*-2+2Y=-20 \n" ); document.write( "-10+2Y=-20 \n" ); document.write( "2Y=-20+10 \n" ); document.write( "2Y=-10 \n" ); document.write( "Y=-10/2 \n" ); document.write( "Y=-5 ANSWER. \n" ); document.write( "PROOF \n" ); document.write( "4*-2-(-5)=-3 \n" ); document.write( "-8+5=-3 \n" ); document.write( "-3=-3 \n" ); document.write( " |