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 - 1.5 - Use of Properties - Concept Quiz 1.5: 2

Answer

False

Work Step by Step

Subtraction is not commutative as can be seen from the example below: $9 - 5 = 4$ while $5-9 = -4$
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