#### Answer

$\dfrac{7x-7y}{x^{2}-y^{2}}=\dfrac{7}{x+y}$

#### Work Step by Step

$\dfrac{7x-7y}{x^{2}-y^{2}}$
Take out common factor $7$ from the numerator and factor the denominator:
$\dfrac{7x-7y}{x^{2}-y^{2}}=\dfrac{7(x-y)}{(x-y)(x+y)}=\dfrac{7}{x+y}$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

$\dfrac{7x-7y}{x^{2}-y^{2}}=\dfrac{7}{x+y}$

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