First, we need to find what "n" is. To do that, we will divide 340 by 17, which equals 20, so n = 20.
Since the question asks for the sum of "n" and 17, we will add 20 and 17. 20 + 17 = 37. So, in conclusion, 37 is the sum of "n" and 17.
Hope this is helpful! :D