The system of equations will be as following below!
6t + 4b = 188
t + b = 38
This is because it can have a total of 188 people in the place with 38 total seating units. Though it is not in the question, quarantine has be bored, so I’ll answer how many booths and tables there are too.
I’ll use substitution to solve this.
t = 38 - b
6(38 - b) + 4b = 188
228 - 6b + 4b = 188
-2b = -40
b = 20
t + 20 = 38
t = 18
So there are 20 booths and 18 tables in the Country Buffet!