Please give me the equation for this problem and its two step equation

Answer:
x = (465-9)/8
Step-by-step explanation:
1) 465 students in total and 9 couldn't go into a bus, to get those in a bus, take 9 away from 465 to get 456.
2) 8 busses with 456 students filling each bus is just 456/8 which equals 57
3) Answer is (465-9)/8