# Chapter 2 - Section 2.6 - Solving Equations: The Addition and Multiplication Properties - Exercise Set: 5

-8 is a solution

#### Work Step by Step

$-9f=64-f$ $\longrightarrow$ substitute -8 for f $(-9)(-8)=64-(-8)$ $\longrightarrow$ simplify $72=72\checkmark$

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