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: 101

Answer

$= -3$

Work Step by Step

Recall the following rule: $a+(-b)=a-b$ Thus, we obtain: $= 4 + (-7)$ $= 4 - 7$ $= -3$
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