document.write( "Question 454673: use multiplication with the addition-or-subtraction method to solve the system:
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document.write( "5x + 2y = 14
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document.write( "3x - 5y =27 \n" );
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Algebra.Com's Answer #312166 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 5x+2y=14 .............1 \n" ); document.write( "3x-5y=27 .............2 \n" ); document.write( "Eliminate y \n" ); document.write( "multiply (1)by 5 \n" ); document.write( "Multiply (2) by 2 \n" ); document.write( "25x+10y= 70 \n" ); document.write( "6x-10y= 54 \n" ); document.write( "Add the two equations \n" ); document.write( "31x=124 \n" ); document.write( "/31 \n" ); document.write( "x=4.00 \n" ); document.write( "plug value of x in (1) \n" ); document.write( "5x+2y=14 \n" ); document.write( "20+2y=14 \n" ); document.write( "2y=14-20 \n" ); document.write( "2y=-6 \n" ); document.write( "y=-3.00 \n" ); document.write( " \n" ); document.write( " |