The sum of two numbers is 48 one number is 3 times as large as the other what are the numbers

What is the value of x in the diagram below?

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?