Respuesta :

Answer:

(6x-4y+9) + (-3x - 2y)

6x - 4y + 9

(+) -3x - 2y + 0

3x - 6y + 9

Step-by-step explanation:

  1. distribute each ()
  2. add them together

nb: I put the zero there to help solve it if there's no number at that place