function-machine/subtraction/expert · Set 88

8 problems
1
Input: 8 → [?] → 22, what is the rule? =
2
? → [+5] → 14 =
3
Input: 3 → [?] → 5, what is the rule? =
4
? → [×2 + 3] → 15 =
5
Input: 7 → [+5] → ? =
6
Input: 8 → [×5] → ? =
7
? → [+5] → 11 =
8
Input: 6 → [?] → 15, what is the rule? =
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