4,1,-8,_,-20,29,-32,43

Question

What is the missing number?

Answer 1

There are two sequences

4 - 12 = -8

-8 - 12 = -20

-20 - 12 = -32

1, __, 29, 43

43 - 29 = 1

1 + 14 = 15

15 + 14 = 29

The missing number is 15.