Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.2 - Operations with Real Numbers and Simplifying Algebraic Expressions - Exercise Set: 152

Answer

To add two numbers with the same sign, add their absolute values. The sum will have the same sign as the two numbers.

Work Step by Step

To add two numbers with the same sign, add their absolute values. The sum will have the same sign as the two numbers. Example: $-3+(-4)$ Add their absolute values: $|-3| + |-4| = 3+4 =7$ The sum must be negative, thus: $-3+(-4)= -7$
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