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You can put this solution on YOUR website!
x-y=7 | The difference between them is 7.
\n" ); document.write( "x*y=60 | Their product is 60.
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document.write( "Solve the first equation for x, then substitute that value for x in the second equation to find y.
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document.write( "x=y+7
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document.write( "(y+7)*y = 60
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document.write( "y^2 + 7y = 60
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document.write( "y^2 +7y - 60 = 0
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document.write( "(y+12)(y-5)=0 | At this point you probably see the answer, but continue solving for y.
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document.write( "y+12=0 so y=-12
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document.write( "y-5 = 0 so y=5
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document.write( "Only y=5 is valid because the problem specifies positive numbers.
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document.write( "x-y=7 and now we know y=5
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document.write( "x-5=7
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document.write( "x=12
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document.write( "
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