Answer
$a$
Work Step by Step
$-(-a)$ is an example of a double negative. Double negatives are positive, so $-(-a)=a$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 2 - Section 2.2 - Adding Integers - Vocabulary, Readiness & Video Check - Page 111: 3
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