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 - 2.2 Using the Principles Together - 2.2 Exercise Set: 1

Answer

$Addition \ principle$

Work Step by Step

To isolate $x$ in $ x-4=7 ,$ add $4$ to both sides. This shows the $\text{ Addition principle .}$
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