Question

Combine like terms:
12x + 3y + 4 - 6y - 9​

Answer 1

12x - 3y - 5

Explanation:

12x + 3y + 4 - 6y - 9 | Given

12x - 3y + 4 - 9 | Subtract 6y from 3y. It becomes -3y.

12x - 3y - 5 | Add +4 and -9 to get -5.

Answer 2

12x-3y-5

Explanation:

3y-6y=-3y

4-9=-5