Respuesta :

Answer:

15 is a solutin but 9 is not

Step-by-step explanation:

x-3=12 does not have a x a x is a 3

Answer: the answer is B

Step-by-step explanation: 15-3=12 Is true, but 9-3=12 is not true because

9-3=6 not 12 so that is why the answer is B