Which property of equality justifies the statement below?   If 15 + a = 10 then a = -5

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter0: A Review Of Basic Algebra
Section0.CR: Chapter Review
Problem 11E
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  1. Which property of equality justifies the statement below?

  If 15 + a = 10 then a = -5

                                                                        __________________________ 

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