Answer
y=-25
Work Step by Step
$-15=y+10$ $\longrightarrow$ addition property
$-15-10=y+10-10$ $\longrightarrow$ simplify
$-25=$
Substitute to check.
$-15=-25+10$
$-15=-15\checkmark$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 2 - Section 2.6 - Solving Equations: The Addition and Multiplication Properties - Exercise Set - Page 149: 33
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