document.write( "Question 932532: Solve by the substitution method.\r
\n" ); document.write( "\n" ); document.write( "  x - 7y = 28
\n" ); document.write( "-6x - 6y = 24
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Algebra.Com's Answer #566252 by jack.wang5(5)\"\" \"About 
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x - 28 = 7y , so y = x/7 - 4.\r
\n" ); document.write( "\n" ); document.write( "- 6x - 6y = 24 , so -6( x + y )=24, x + y = -4 = x + (x/7-4)=-4, x = 0.\r
\n" ); document.write( "\n" ); document.write( "y = -4.
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