function-machine/subtraction/hard · Sada 84

7 problems
1
Input: 2 → [?] → 6, what is the rule? =
2
Input: 10 → [?] → 15, what is the rule? =
3
? → [×3 - 2] → 19 =
4
? → [+2] → 9 =
5
Input: 8 → [?] → 16, what is the rule? =
6
? → [×2 + 3] → 11 =
7
Input: 6 → [?] → 3, what is the rule? =
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