To figure this out, you have to use PEMDAS. So since there are no parenthesis or exponents, you have to do multiplication. You have to multiply 5,000 and 3, which should get you 15,000. The next thing you have to do is addition so you have to add 5,000 to 15,000. Once you do this, you should get an answer of 20,000.
20,000 is your answer.