Answer: the distance between the the police station and the fire station is 4 miles.
Step-by-step explanation:
Let x represent the distance between the library and the police station.
Let y represent the distance between the the police station and the fires station.
In the city, the distance between the library and the police station is 3 miles less than twice the distance between the police station and the fire station. This is expressed as
x = 2y - 3
The distance between the library and the police station is 5 miles. This means that
5 = 2y - 3
2y = 5 + 3 = 8
y = 8/2 = 4
