Prealgebra (7th Edition)

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

Chapter 3 - Review: 3

Answer

$-6a-7$

Work Step by Step

Sum the coefficients of the terms containing the variable a. $8a+a-7-15a=9a-7-15a=-6a-7$
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