Respuesta :

Answer:

-1

Step-by-step explanation:

If 5 + 7 = 17

5 + 7 + ? = 17

5 + 7 = 12 so 17-12 + 5

5 = N

N - 6 = ?

5 - 6 = -1

Answer:

-4

Step-by-step explanation:

n - 6 = ?

5n + 7 = 17

17 - 7 = 10

10 / 5 = 2

n = 2

2 - 6 = -4