# How do you solve -( - n + 7) = 25- 3n?

Jun 9, 2018

$n = 8$

#### Explanation:

First, distribute the negative sign (it flips the existing sign)
$n - 7 = 25 - 3 n$

Add 7 to both sides
$n = 32 - 3 n$

Add 3n to both sides
$4 n = 32$

Divide both sides by 4
$n = 8$

The key is to use the INVERSE operation (ex: addition/subtraction, multiplication/division)