function-machine/subtraction/expert · Sada 100

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