Respuesta :

Answer:

-9 + 4 = 4 - 9 = -5

-5 + 8 = 8 - 5 = 3

3 is the answer

Step-by-step explanation:

8+[4+(-9)]

-9 + 4 = 4 - 9 = -5

-5 + 8 = 8 - 5 = 3

3 is the final answer.