Respuesta :

genius1612

Answer:

Step-by-step explanation:

- 4 + 4 = 0

- 9 + 8 = - 1  

8 + (-1)  = 7

-6 + (-2)   = - 8

What is the sum of negative 9 and 7 = > - 9 + (-7) = - 9 - 7 = - 16