Question

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

Answer 1

`m=(63-2.1)/(1.2+7.5)=60.9/8.7 = 7`

Explanation:

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

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

`1.2m + 7.5m = (1.2+7.5)m = 8.7m`

So `8.7m = 60.9`

Divide both sides by `8.7` to get:

`m = 60.9/8.7 = 7`