If I have $20 to buy snacks for myself and 4 friends if I buy a bag of chips for each person and end up with $13.75 left how much did I spend on each chip bag?

Answer:
20 - 5x = 13.75
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)