document.write( "Question 470412: Solve the system by the addition or substitution method.\r
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document.write( " x - 6y = -46
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document.write( "-3x - 7y = -62 \n" );
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Algebra.Com's Answer #322842 by sofiyac(983)![]() ![]() You can put this solution on YOUR website! x - 6y = -46 \n" ); document.write( "-3x - 7y = -62 multiply first one by 3 and add to second one \n" ); document.write( "*** \n" ); document.write( " 3x - 18y = -138 \n" ); document.write( "-3x - 7y = -62 add them \n" ); document.write( "************ \n" ); document.write( "-25y=-200 divide each side by -25 \n" ); document.write( "y=8 \n" ); document.write( "plug into either of the equations \n" ); document.write( "x-6*8=-46 \n" ); document.write( "x-48=-46 \n" ); document.write( "x=2 \n" ); document.write( "(2,8) \n" ); document.write( " |