Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 2 - Equations, Inequalities, and Problem Solving - 2.4 Applications with Percent - 2.4 Exercise Set - Page 111: 91



Work Step by Step

$\bf{\text{Solution Outline:}}$ Substitute $x=-12,$ to evaluate the given expression, $ -(-x) .$ $\bf{\text{Solution Details:}}$ Substituting $x=-12,$ the given expression evaluates to \begin{array}{l}\require{cancel} -(-x) \\\\= -(-(-12)) \\\\= -(12) \\\\= -12 .\end{array}
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