Susan has 21 cats and Bob has 3 cats. If Susan gives Robert 4 of her cats, how many more cats does Susan have than Bob?
Thoughts? Step-by-step reasoning:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
After giving away four of her cats, Susan has 21 - 4 = 17. Susan has 17 - 3 = 14 more cats than Bob.
Thus, the answer is 14.