# Chapter 2 - Equations, Inequalities, and Problem Solving - 2.1 Solving Equations - 2.1 Exercise Set - Page 86: 8

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, $\text{ Choice B .}$

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