Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.3 - Integers: Addition and Subtraction - Problem Set 1.3: 113

Answer

$= - 100$

Work Step by Step

Recall the following rule: $-a+(-b)=-a-b$ Thus, we obtain: $= -55 + (-45)$ $= -55 - 45$ $= -100$
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