Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Section 1.4 - Basic Rules of Algebra - Exercise Set - Page 54: 89

Answer

Does not make sense.

Work Step by Step

$x-4$ can be written as $x+(-4)$. Now, applying the commutative property of addition, this is equal to $-4+x,$ (not $4-x).$ In other words, subtraction is NOT commutative. Does not make sense.
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