Question

3, -6, 12, 4, 20, what is next

Answer 1

13

Explanation:

3 - 9 = -6

-6 + 18 = 12

-9 * -2 = 18

12 - 8 = 4

4 + 16 = 20

-8 *-2 = 16

20 - 7 = 13

Hope it helps! : )