# How do you solve 4m + 9 + 5m - 12 = 42?

$m = 5$

#### Explanation:

Given that

$4 m + 9 + 5 m - 12 = 42$

$9 m - 3 = 42$

$9 m = 45$

$m = \frac{45}{9}$

$m = 5$

Jul 18, 2018

$m = 5$

#### Explanation:

We can combine our like terms on the left to get

$9 m - 3 = 42$

Remember, we want to isolate our $m$ term. We can next do this by adding $3$ to both sides. We get

$9 m = 45$

Dividing both sides by $9$, we get

$m = 5$

Hope this helps!