Respuesta :
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
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