# Chapter 2 - Equations, Inequalities, and Problem Solving - 2.1 Solving Equations - 2.1 Exercise Set - Page 86: 50

$68=r$

#### Work Step by Step

Dividing both sides by $-1$, then the solution to the given equation, $-68=-r$, is \begin{array}{l} \dfrac{-68}{-1}=\dfrac{-r}{-1} \\\\ 68=r .\end{array}

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