## Elementary Technical Mathematics

Published by Brooks Cole

# Chapter 5 - Section 5.2 - Simplifying Algebraic Expressions - Exercise - Page 217: 20

#### Answer

$-3x-y-2z-7w-3r+5s-2$

#### Work Step by Step

To remove parentheses when preceded by a minus sign you must change the sign of each term within the parentheses and drop the leading minus sign.

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