# Question #15fe4

##### 2 Answers

Sep 19, 2017

#### Explanation:

**Step one: collect like-terms**

*7n + (2+1) = 45*

**Step two: : subtract both sides by 3**

*7n + 3 -3 = 45 **-3

**42*

7n =7n =

**Step three : divide both sides by 7**

**Ans** is

Sep 19, 2017

#### Explanation:

Combine like terms:

Isolate the variable: