In the city, the dust and between the library and the police station is 3 miles less than twice the distance between the police
Station and the fire station. The distance between the library and the police station is 5 miles. How far apart are the police station and the fire station
Let's call the distance between the library and police station x. Then, the distance between the police station and fire station would be 3 less than twice x. Twice means multiply by 2 so twice x is 2 * x = 2x and 3 less than means that you subtract 3 so 3 less than 2x is 2x - 3. Now, we know that x = 5 so all we have to do now is substitute x = 5 into 2x - 3, therefore, the answer is 2 * 5 - 3 = 7 miles.
