It's Joey's 8th birthday! Joey's favorite present is the 8 baseball cards that he got from his dad. Joey has never owned a baseball card before this gift, and he decides that he wants to start collecting baseball cards.

He plans to collect 3 baseball cards each month until he has a total of 50 cards.

Let x represent the number of months Joey collects the baseball cards.

Which equation can Joey use to determine how many months it will take to reach his goal?