Question

How do you solve `-16+4a+7a=8a+a`?

Answer 1

`a=8`

Explanation:

`-16+4a+7a= 8a+a`

1. Combine like terms
   `-16+11a= 9a`

2. Move the variable to one side
   `-16= -2a`

3. Divide by `-2`
   `a=8`