document.write( "Question 199061: {5x + 3y= 7
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document.write( "{x - 6y = 8 \n" );
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Algebra.Com's Answer #149554 by RAY100(1637)![]() ![]() ![]() You can put this solution on YOUR website! (1) 5x +3y = 7 \n" ); document.write( ". \n" ); document.write( "(2) x-6y = 8 \n" ); document.write( ". \n" ); document.write( "let (2a) = (2) * (-5) = -5x +30y = -40 \n" ); document.write( ". \n" ); document.write( "add (1) + (2) = 0x =33y =-33,,,,or y=-1 \n" ); document.write( ". \n" ); document.write( "subst in (2) x-6(-1) = 8,,, x+6=8,,,,x=2 \n" ); document.write( ". \n" ); document.write( "check \n" ); document.write( "(1) 10 -3 =7,,,,ok \n" ); document.write( "(2) 2-(-6) =8,,,,ok \n" ); document.write( " |