Prealgebra (7th Edition)

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

Chapter 3 - Section 3.2 - Solving Equations: Review of the Addition and Multiplication Properties - Vocabulary, Readiness & Video Check: 39

Answer

$x=-11$

Work Step by Step

$-3(x+1)-10=12+8$ $\longrightarrow$distributive property; simplify $-3x-3-10=12+8$ $\longrightarrow$simplify $-3x-13=20$ $\longrightarrow$addition property $-3x-13+13=20+13$ $\longrightarrow$simplify $-3x=33$ $\longrightarrow$multiplication property $-3x\div-3=33\div-3$ $\longrightarrow$simplify $x=-11$
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