Answer
$y=65$
Work Step by Step
$|-13|+32=100y-|-20|-99y\rightarrow$ resolve absolute values
$13+32=100y-20-99y\rightarrow$ combine like terms
$45=y-20\rightarrow$ add 20 to both sides
$45+20=y-20+20\rightarrow$ simplify
$65=y$
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 - Exercise Set - Page 181: 109
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