# How do you solve 3-5n=42?

Nov 28, 2016

$n = - \frac{39}{5}$

#### Explanation:

Step 1) Subtract $3$ from each side of the equation to isolate the $n$ term and keep the equation balanced:

$3 - 3 - 5 n = 42 - 3$

$0 - 5 n = 39$

$- 5 n = 39$

Step 2) Divide each side of the equation by $- 5$ to solve for $n$ and keep the equation balanced:

$\frac{- 5 n}{- 5} = \frac{39}{- 5}$

$\frac{\cancel{- 5} n}{\cancel{- 5}} = - \frac{39}{5}$

$n = - \frac{39}{5}$