## Basic College Mathematics (10th Edition)

Published by Pearson

# Chapter 9 - Basic Algebra - 9.6 Solving Equations - 9.6 Exercises - Page 668: 19

#### Answer

$r=-6$

#### Work Step by Step

$7=r+13$ Subtract 13 from both sides. $7-13=r+13-13$ $-6=r+0$ $r=-6$

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