Answer
$= -3$
Work Step by Step
Recall the following rule:
$a+(-b)=a-b$
Thus, we obtain:
$= 4 + (-7)$
$= 4 - 7$
$= -3$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
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 - Page 20: 101
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