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OpenStudy (anonymous):
Subtract and simplify your answer.
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OpenStudy (anonymous):
\[\frac{ 5x }{ x^2-81}-\frac{ 7 }{ x+9 }\]
OpenStudy (anonymous):
\[\frac{5x-7(x-9)}{(x+9)(x-9)} =\frac{-2x+63}{x^2-81}\]
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