Question

How do you solve `-7- 7a = 8+ 4( - 2a - 2)`?

Answer 1

`a=7`

Explanation:

First, you could multiply and get:

`-7-7a=cancel8-8acancel(-8)`

Then trasfer the unknown terms to the left side and the known ones to the right, changing their signs:

`-7a+8a=7`

then sum and get the solution:

`a=7`