function-machine/multiplication/medium · Série 76

8 problems
1
Input: 1 → [×3] → ? =
2
? → [+5] → 9 =
3
? → [×3] → 18 =
4
? → [×2 + 3] → 13 =
5
? → [×5] → 30 =
6
Input: 7 → [?] → 4, what is the rule? =
7
Input: 1 → [×2 + 3] → ? =
8
Input: 3 → [-1] → ? =
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