function-machine/addition/medium · सेट 69

8 problems
1
Input: 6 → [?] → 20, what is the rule? =
2
Input: 5 → [?] → 13, what is the rule? =
3
Input: 2 → [×2] → ? =
4
? → [+4 ×2] → 10 =
5
Input: 7 → [×2 + 1] → ? =
6
? → [×3 - 2] → 19 =
7
? → [×3 - 2] → 28 =
8
Input: 8 → [+4 ×2] → ? =
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