document.write( "Question 143352: solve using the addition method.\r
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document.write( "2x - 3y = -6
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document.write( " x + y = 7 \n" );
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Algebra.Com's Answer #104324 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! solve using the addition method. \n" ); document.write( "2x - 3y = -6 \n" ); document.write( "x + y = 7 \n" ); document.write( "------------ \n" ); document.write( "multiply thru the 2nd eqution by 2 to get \n" ); document.write( "2x+2y = 14 \n" ); document.write( "------- \n" ); document.write( "Subtract this from the 1st equation to get: \n" ); document.write( "-5y = -20 \n" ); document.write( "y = 4 \n" ); document.write( "------------------- \n" ); document.write( "Substitute that into x+y = 7 \n" ); document.write( "x + 4 = 7 \n" ); document.write( "x = 3 \n" ); document.write( "------------ \n" ); document.write( "Solution :(3,4) \n" ); document.write( "================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |