Elementary Algebra

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

Chapter 2 - Real Numbers - 2.3 - Real Numbers and Algebraic Expressions - Problem Set 2.3: 23

Answer

-7.8

Work Step by Step

Recall the following rule: $a-(-b)=a+b$ Thus, we obtain: $-17.2-(-9.4)=-17.2+9.4=-7.8$
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