Find the nth term of the following sequences

Question 1:

-1,5,11,17,23
6n−7

Question 2:

28,22,16,10,4
34−6n

Question 3:

-2,-1,0,1,2
n−3

Question 4:

20,15,10,5,0
25−5n

Question 5:

39,35,31,27,23
43−4n

Question 6:

4,13,22,31,40
9n−5