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 1 - Introduction to Algebraic Expressions - Study Summary - Practice Exercises - Page 75: 29



Work Step by Step

When a parenthesis is preceeded by a minus sign, removing the parenthesis involves reversing the sign of each term inside the parenthesis. Hence, the given expression, $ -(-a+2b-3c) ,$ is equivalent to $ a-2b+3c .$
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