function-machine/multiplication/expert · Set 98

8 problems
1
? → [×3 - 2] → 13 =
2
Input: 5 → [?] → 2, what is the rule? =
3
? → [×3] → 21 =
4
Input: 6 → [×3] → ? =
5
Input: 7 → [×2 + 3] → ? =
6
Input: 4 → [?] → 12, what is the rule? =
7
? → [×3] → 3 =
8
Input: 5 → [?] → 15, what is the rule? =
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