Answer:
van: 18
bus: 59
Step-by-step explanation:
x: students per van
y: students per bus
Highschool A:
x + 6y = 372 / *(-2)
Highschool B:
4x + 12y = 780
-2x - 12y = - 744
2x = 36
x = 18
Replace x in 1 equation
18 + 6y = 372
y = 59
