Prealgebra (7th Edition)

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

Chapter 2 - Section 2.6 - Solving Equations: The Addition and Multiplication Properties - Exercise Set - Page 149: 24



Work Step by Step

$7y=-21$ $\longrightarrow$ multiplication property $7y\div7=-21\div7$ $\longrightarrow$ simplify $y=-3$ Substitute to check. $7(-3)=-21$ $-21=-21\checkmark$
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