Answer
Choice B
Work Step by Step
To solve $
x+6=30
,$ apply the addition principle by adding $-6$ (or by subtracting 6) to both sides. Hence, $\text{
Choice B
.}$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
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 - Page 86: 8
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