document.write( "Question 246085: Can anyone help me with this?
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document.write( "Solve by elimination
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document.write( "5x+5y=-7
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document.write( "7x-3y=19
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document.write( "I do not understand this I keep getting different answers, the solution is suppose to be an ordered pair of fractions thank you for your time \n" );
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Algebra.Com's Answer #179728 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 5x+5y=-7 \n" ); document.write( "7x-3y=19 \n" ); document.write( "to solve by elimination we must eliminate one of the variables\r \n" ); document.write( "\n" ); document.write( "multiply the first by 3 and the second by 5 \n" ); document.write( "15x+15y=-21 \n" ); document.write( "35x-15y=95 \n" ); document.write( "now add the two new equations \n" ); document.write( "50x=74 \n" ); document.write( "x=74/50 \n" ); document.write( "divide by 2 \n" ); document.write( "x=37/25 \n" ); document.write( "we can do similarly for y ( multiply first by 7 and second by 5 and subtract) \n" ); document.write( "or substitute 37/25 into one of the equations\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |