Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - 9.7 Solving Equations with Several Steps - 9.7 Exercises: 40

Answer

$-\frac{3}{4}d$

Work Step by Step

The distributive property holds that $a(b+c)=ab+bc$. Therefore, we can use the distributive property to combine like terms. $\frac{3}{8}d-\frac{9}{8}d=(\frac{3}{8}-\frac{9}{8})d=(\frac{3-9}{8})d=(-\frac{6}{8})d=-\frac{3}{4}d$
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