document.write( "Question 378961: 5r-2s=37
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document.write( "2r+5s=38\r
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document.write( "Solve using the elimination method? \n" );
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Algebra.Com's Answer #269127 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 5r-2s=37 \n" ); document.write( "2r+5s=38 \n" ); document.write( "----------------- \n" ); document.write( "Multiply 1st by 2; Multiply 2nd by 5. \n" ); document.write( "-------------------- \n" ); document.write( "10r-4s = 74 \n" ); document.write( "10r+25s = 190 \n" ); document.write( "------------------------ \n" ); document.write( "Subtract 1st from 2nd and solve for \"s\": \n" ); document.write( "29s = 116 \n" ); document.write( "s = 4 \n" ); document.write( "---- \n" ); document.write( "Substitute for \"s\" and solve for \"r: \n" ); document.write( "5r - 2*4 = 37 \n" ); document.write( "5r = 45 \n" ); document.write( "r = 9 \n" ); document.write( "======================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |