# How do you solve 1.2m+7.5m+2.1=63?

Jun 18, 2015

$m = \frac{63 - 2.1}{1.2 + 7.5} = \frac{60.9}{8.7} = 7$

#### Explanation:

First subtract $2.1$ from both sides of the equation to get:

$1.2 m + 7.5 m = 63 - 2.1 = 60.9$

$1.2 m + 7.5 m = \left(1.2 + 7.5\right) m = 8.7 m$

So $8.7 m = 60.9$

Divide both sides by $8.7$ to get:

$m = \frac{60.9}{8.7} = 7$