function-machine/division/hard · Set 20

8 problems
1
? → [×3 - 2] → 16 =
2
Input: 9 → [×3] → ? =
3
Input: 2 → [?] → 7, what is the rule? =
4
? → [×3] → 6 =
5
? → [-1] → 4 =
6
? → [×2 + 1] → 11 =
7
Input: 8 → [+2] → ? =
8
? → [×5] → 20 =
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