Respuesta :
x = distance between library and police station
y = distance between police station and fire station
x = 5
x = 2y - 3
5 = 2y - 3
5 + 3 = 2y
8 = 2y
8/2 = y
4 = y <=== distance between police station and fire station is 4 miles
y = distance between police station and fire station
x = 5
x = 2y - 3
5 = 2y - 3
5 + 3 = 2y
8 = 2y
8/2 = y
4 = y <=== distance between police station and fire station is 4 miles