Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 2 - Equations, Inequalities, and Problem Solving - 2.1 Solving Equations - 2.1 Exercise Set: 94

Answer

It is not necessary to add a Subtraction Principle because this is just the same as the Addition Principle since subtraction also means adding a negative number.

Work Step by Step

Subtraction and Addition Principles would mean the same thing.
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