# How do you solve 3+6v=45?

##### 1 Answer
Aug 1, 2015

You isolate $v$ on one side of the equation to get $v = 7$.

#### Explanation:

You can solve this equation by isolating $v$ on one side of the equation.

To do that, first add $- 3$ to both sides of the equation

$\textcolor{red}{\cancel{\textcolor{b l a c k}{3}}} - \textcolor{red}{\cancel{\textcolor{b l a c k}{3}}} + 6 v = 45 - 3$

$6 v = 42$

Now divide both sides of the equation by $6$ to get $v$ alone on the left side of the equation

$\frac{\textcolor{red}{\cancel{\textcolor{b l a c k}{6}}} \cdot v}{\textcolor{red}{\cancel{\textcolor{b l a c k}{6}}}} = \frac{42}{6}$

$v = \textcolor{g r e e n}{7}$