Answer
addition
Work Step by Step
The addition property of equality says that adding or subtracting the same number from both sides of an equation does not change its solution.
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 2 - Section 2.6 - Solving Equations: The Addition and Multiplication Properties - Vocabulary, Readiness & Video Check - Page 148: 7
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