Question

What it's A in -5a-2(-7a-10)=128​

Answer 1

Your answer will be 3

Answer 2

`a=12`

Explanation:

`-5a-2(-7a-10)=128`

Distribute the -2:

`-5a+14a+20=128`

Simplify:

`9a+20=128`

Subtract 20 from both sides:

`9a=108`

Divide both sides by 9:

`a=12`