Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 3 - Section 3.1 - Simplifying Algebraic Expressions - Practice - Page 167: 9

Answer

21a - 15

Work Step by Step

3 (7a-5) = By the distributive property 3 (7a - 5) = (3 $\times$ 7) a + (3 $\times$ -5) = 21a - 15
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