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

1 Answer
Mar 29, 2017

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