document.write( "Question 116667: solve for x and y\r
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document.write( "x=12-y 5x+2y=12 \n" );
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Algebra.Com's Answer #84830 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! x=12-y now substitute (12-y) for x in the other eqaution & solve for y \n" ); document.write( "5(12-y)+2y=12 \n" ); document.write( "60-5y+2y=12 \n" ); document.write( "-3y=12-60 \n" ); document.write( "-3y=-48 \n" ); document.write( "y=-48/-3 \n" ); document.write( "y=16 answer. \n" ); document.write( "x=12-16 \n" ); document.write( "x=-4 answer. \n" ); document.write( "proof \n" ); document.write( "5*-4+2*12=12 \n" ); document.write( "-20+24=12 \n" ); document.write( "12=12 \n" ); document.write( " \n" ); document.write( " |