Answer
$x=-12$
Work Step by Step
$x=-2+90+(-100)$
In this case we simply add the numbers on the right side, there's no need to check
$x=-2+90-100$
$x=-12$
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 - Practice - Page 144: 4
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