Answer:
The required equation is

Explanation:
Consider the provided information.
The games you can play at the Amusement Park average $5 per game and your ticket was $50. Your cost for the day is $100.
You have $100 and your ticket was $50.
So now you have:
.
That means after buying ticket you are left with $50.
Let n represents the number of games and you can play average $5 per game.
Therefore, for n number of games you need to pay

You have $50 left and you need to pay
per game, So the distance C remaining after you pay n games is:

Hence, the required equation is
