n is a variable (representation of the number you are trying to find. 4n means 4 x n.
EXAMPLE:
If n = 2, then 4n = 4 x 2 = 8
The nth term IS 4n + 3 ie 4 times n and then add 3.
4n-2
The nth term is equal to 4n.
The nth term is (36 - 4n)
It is 4n-13 and so the next number will be 11
The nth term in this sequence is 4n + 3.
It is: nth term = -4n+14
4n+5
Un = 4n - 68
The next term is: 15+4 = 19 The nth term is: 4n-5
The nth term is 4n - 3
If you mean: 15 11 7 3 then the nth term is 19-4n