Question

How do you solve this?

Answer 1

Answer: -1(-9 + 7a)

Explanation:

What you want to do is divide both terms by -1.

9/-1 = -9 -7a/-1 = 7a giving you -9 + 7a

To make the equation equal to the original equation, multiply your new binomial by -1

Giving you -1(-9+7a)