The number line shows the distance in meters of two divers, A and B, from a shipwreck located at point X:

a horizontal number line extends from negative 3 to positive 3. The point labeled as A is at negative 2.5, the point 0 is labeled as X, and the point labeled B is at 1.5

Write an expression using subtraction to find the distance between the two divers.
Show your work and solve for the distance using additive inverses.