Respuesta :

Answer:

4) -15 + (3)

Step-by-step explanation:

1: -9-(-9) = -9-9 = 0

2: -2-(6) = -2-6 = -8

3: 15 + (-7) = 15 - 7 = 8

4: -15 + (-3) = -15-3 = -18

-18 is the smallest value