Question

How do you solve `-9a>= -45`?

Answer 1

`a <= 5`

Explanation:

`-9a >= -45`

In order to isolate `a`, you need to divide both sides by `-9`

However, when you divide an inequality by a negative number, the sign changes around.

`(-9a)/-9 <= (-45)/-9`

`a <= 5`