A small business sells three sizes of t-shirts: small, medium, and large. On a particular day, the number of small t-shirts sold was . The number of medium t-shirts sold was 10 more than the number of small t-shirts. The number of large t-shirts sold was 3 times the number of medium t-shirts. If the total number of t-shirts sold that day was 150, which equation correctly represents this situation?
