document.write( "Question 462921: Solve for x and y:\r
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document.write( "8x+5y=5
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document.write( "7x+10y=-1 \n" );
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Algebra.Com's Answer #317262 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Solve for x and y: \n" ); document.write( "8x+5y=5 \n" ); document.write( "7x+10y=-1 \n" ); document.write( "---- \n" ); document.write( "Multiply thru the 1st equation: \n" ); document.write( "16x + 10y = 10 \n" ); document.write( "7x + 10y = -1 \n" ); document.write( "------------------ \n" ); document.write( "Subtract and solve for \"x\": \n" ); document.write( "9x = 11 \n" ); document.write( "x = 11/9 \n" ); document.write( "----------------- \n" ); document.write( "Solve for \"y\": \n" ); document.write( "3x + 5y = 5 \n" ); document.write( "3(11/9) + 5y = (45/9) \n" ); document.write( "------- \n" ); document.write( "5y = 12/9 \n" ); document.write( "y = 12/45 \n" ); document.write( "--- \n" ); document.write( "y = 4/15 \n" ); document.write( "------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============= \n" ); document.write( " |