Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 7 - Algebraic Fractions - Chapter 7 Review Problem Set: 9

Answer

$ = \frac{22x-19}{20}$

Work Step by Step

1. Find a common denominator: Multiply the first fraction by $4$ and the second fraction by $5$ to obtain a common denominator of $20$: $= \frac{4(3x+4)}{20} + \frac{5(2x-7)}{20}$ $= \frac{12x+16}{20} + \frac{10x-35}{20}$ 2. Add the fractions $ = \frac{12x+16+10x-35}{20}$ $ = \frac{22x-19}{20}$
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