document.write( "Question 207956: I need help with this question.\r
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document.write( "Solve using either elimination or substitution. If the system has either no solution or an infinite number of solutions, state this.\r
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document.write( "7x - 2y = 24
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document.write( "5x + 4y = 28 \n" );
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Algebra.Com's Answer #157285 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 7x - 2y = 24 MULTIPLY THIS EQUATION BY 2 & ADD THEM. \n" ); document.write( "5x+4y=28 \n" ); document.write( "14X-4Y=48 \n" ); document.write( "--------------------- \n" ); document.write( "19X=76 \n" ); document.write( "X=76/19 \n" ); document.write( "X=4 ANS. \n" ); document.write( "7*4-2Y=24 \n" ); document.write( "28-2Y=24 \n" ); document.write( "-3Y=24-28 \n" ); document.write( "-2Y=-4 \n" ); document.write( "Y=-4/-2 \n" ); document.write( "Y=2 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "5*4+4*2=28 \n" ); document.write( "20+8=28 \n" ); document.write( "28=28 \n" ); document.write( " |