document.write( "Question 56588: solve the system:\r
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document.write( "4x+5y = -24
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document.write( "x-5y = 19 \n" );
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Algebra.Com's Answer #38399 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! 4X+5Y=-24 \n" ); document.write( "X-5Y=19 NOW ADD THESE TWO EQUATIONS \n" ); document.write( "--------------------- \n" ); document.write( "5X=-5 \n" ); document.write( "X=-5/5 \n" ); document.write( "X=-1 \n" ); document.write( "4*-1+5Y=-24 \n" ); document.write( "-4+5Y=-24 \n" ); document.write( "5Y=-24+4 \n" ); document.write( "5Y=-20 \n" ); document.write( "Y=-20/5 \n" ); document.write( "Y=-4 \n" ); document.write( "PROOF \n" ); document.write( "-1-5*-4=19 \n" ); document.write( "-1+20=19 \n" ); document.write( "19=19 \n" ); document.write( " |