Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 9 - Basic Algebra - 9.2 Adding and Subtracting Signed Numbers - 9.2 Exercises - Page 639: 52

Answer

-14

Work Step by Step

In order to subtract by changing subtraction to addition, we can follow the steps below. Step 1. The first number stays the same. Step 2. Change the subtraction sign to an addition sign. Step 3. Change the second number to its opposite. Step 4. Evaluate. Therefore, $-10-4=-10+(-4)=-14$
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