document.write( "Question 835438: 5x + 2y = 8
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document.write( "x + y = 4\r
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document.write( "If you want to solve the system of equations by addition, which of the following could you do? \n" );
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Algebra.Com's Answer #503521 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 5x + 2y = 8 \n" ); document.write( "x + y = 4 \n" ); document.write( "If you want to solve the system of equations by addition \n" ); document.write( "---- \n" ); document.write( "Multiply thru the bottom equation by -5:: \n" ); document.write( "5x + 2y = 8 \n" ); document.write( "-5x-5y = -20 \n" ); document.write( "--- \n" ); document.write( "Add and solve for \"y\": \n" ); document.write( "-3y = -12 \n" ); document.write( "---- \n" ); document.write( "Divide by -3 to get: \n" ); document.write( "y = 4 \n" ); document.write( "--- \n" ); document.write( "Solve for \"x\": \n" ); document.write( "x + y = 4 \n" ); document.write( "x + 4 = 4 \n" ); document.write( "x = 0 \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================== \n" ); document.write( " |