Question

9a - b - 2a - 10b
Trying to get this but seem to not to be able any help

Answer 1

The answer is 11b

Explanation:

1. Group the like terms- 9a-2a-b-10b

2. Add similar elements -9a-2a-b-10

3. then you add similar element to get 11b- 10b=11b