document.write( "Question 740838: simplify each sum or difference
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Algebra.Com's Answer #451725 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"3%2F%28y%5E2-1%29+%2B+y%2F%287y-7%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"3%2F%28%28y-1%29%28y%2B1%29%29+%2B+y%2F7%28y-1%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"%283%2A7+%2B+y%28y%2B1%29%29%2F7%28%28y-1%29%28y%2B1%29%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"%2821+%2B+y%5E2%2By%29%2F7%28%28y-1%29%28y%2B1%29%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"%28y%5E2%2By%2B21%29%2F7%28%28y-1%29%28y%2B1%29%29\"$ \n" ); document.write( "

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