Two schools, jefferson hills east and jefferson hills west, are taking a field trip. a total of 408 students from jefferson hills east will be going in 3 vans and 6 buses. a total of 516 from jefferson hills west will be going in 6 vans and 7 buses. each can has the same number of passengers and each bus has the same number of passengers. wrote a system of equations that represents this problem situation. let x represent the number of students in each van, and let y represent the number of students in each bus.