Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 9 - Cumulative Review: 4



Work Step by Step

$\frac{x}{7}+\frac{x}{5}=\frac{12}{5}$ $\frac{x}{7} \times \frac{5}{5} + \frac{x}{5} \times \frac{7}{7} = \frac{12}{5} \times \frac{7}{7}$ $\frac{5x}{35}+\frac{7x}{35}=\frac{84}{35}$ $\frac{12x}{35}=\frac{84}{35}$ $12x=84$ $x=7$
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