Respuesta :

Answer: 9

Step-by-step explanation:

isn't it obvious

wegnerkolmp2741o

Answer:

9

Step-by-step explanation:

8 + ___ = 15 + 2

Combine like terms

8 + ___ = 17

Subtract 8 from each side

8-8 + ___ = 17-8

___ = 9

9 is the number we need to fill in the blank