Respuesta :
Answer: Look below.
Step-by-step explanation: To simplify this problem, you need to follow order of operations.
First you need to multiply (or divide, doesn't matter.)
Then you need to divide.
Lastly, you would subtract to get the answer of 6.
Use PEMDAS for order of operations.
Step-by-step explanation:
order of operations devide 12by 4 to get 3 and multiple the answer by 3 to9 and substract it from 15 to get 6