Prealgebra (7th Edition)

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

Chapter 3 - Test - Page 207: 9



Work Step by Step

$-4x+7=15$ $\longrightarrow$addition property $-4x+7-7=15-7$ $\longrightarrow$combine like tems $-4x=8$ $\longrightarrow$multiplication property $-4x\div-4=8\div-4$ $\longrightarrow$divide $x=-2$
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