What are the next 3 terms in the sequence?

37, 29, 21, ,,

To find the pattern in the equation compare numbers:
37-8=29
29-8=21

therefore we know the pattern is subtracting by 8, all you have to do then is do the same thing 3 more times:
21-8= 13
13-8= 5
5-8=-3

so your next 3 terms are: 13, 5 and -3

This is too long-standing now get out