Answer
$t=-3$
Work Step by Step
$-30=t+9t\rightarrow$ combine like terms
$-30=10t\rightarrow$ divide both sides by 10
$-30\div10=10t\div10\rightarrow$ simplify
$-3=t$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
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 - Exercise Set - Page 180: 58
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