Prealgebra (7th Edition)

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

Chapter 3 - Review - Page 204: 20



Work Step by Step

$-3a=-15$ $\longrightarrow$multiplication property $-3a\div-3=-15\div-3$ $\longrightarrow$simplify $a=5$
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