Answer
$y=5$
Work Step by Step
$100=15y+5y$ $\longrightarrow$ simplify
$100=20y$ $\longrightarrow$ multiplication property
$100\div20=20y\div20$ $\longrightarrow$ simplify
$5=y$
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 - Vocabulary, Readiness & Video Check - Page 179: 8
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