document.write( "Question 137104:  I need help with using the elimination method to solve\r
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document.write( "5/x + 2/y = 0      6/x + 4/y = 3\r
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document.write( "I know you have to do something with U's and V's but i'm totally lost \n" );
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| Algebra.Com's Answer #100322 by checkley77(12844)      You can put this solution on YOUR website! 5/x + 2/y = 0 multiply this equation by -2 & add them. \n" ); document.write( "6/x + 4/y = 3 \n" ); document.write( "-10/x-4/y=0 \n" ); document.write( "--------------------- \n" ); document.write( "-4/x=3 \n" ); document.write( "3x=-4 \n" ); document.write( "x=-4/3 answer. \n" ); document.write( "6/(-4/3)+4/y=3 \n" ); document.write( "6*-3/4+4/y=3 \n" ); document.write( "-18/4+4/y=3 \n" ); document.write( "4/y=3+18/4 \n" ); document.write( "4/y=(12+18)/4 \n" ); document.write( "4/y=30/4 \n" ); document.write( "30y=16 \n" ); document.write( "y=16/30 \n" ); document.write( "y=8/15 answer. \n" ); document.write( "proof: \n" ); document.write( "5/(-4/3)+2/(8/15)=0 \n" ); document.write( "5*-3/4+2*15/8=0 \n" ); document.write( "-15/4+30/8=0 \n" ); document.write( "-15/4+15/4=0 \n" ); document.write( "0=0 \n" ); document.write( " \n" ); document.write( " |