#### Answer

$= \frac{5(x+7)}{3(x-4)}$

#### Work Step by Step

$\frac{5x+20}{x-4} \div \frac{3x+12}{x+7}$
$= \frac{5(x+4)}{x-4} \div \frac{3(x+4)}{x+7}$
$= \frac{5(x+4)}{x-4} \times \frac{x+7}{3(x+4)}$
$= \frac{5(x+7)}{3(x-4)}$

Published by
Brooks Cole

ISBN 10:
0-53449-636-9

ISBN 13:
978-0-53449-636-4

$= \frac{5(x+7)}{3(x-4)}$

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