Question

a company uses two van to transport workers from a free parking lot to the workplace between 7:00 and 9:00 a.m, one van has 6 more seats than the other. the smaller van makes two trips every morning while the larger one makes only ne trip. the two vans can transport 57 people maximmum. let x be seats in the small van and y the seats in the large van. how many seats does the larger van have?