Mixed Medium · Set 87

8 problems
1
Input: 5 → [×2] → ? =
2
Input: 1 → [×3] → ? =
3
Input: 7 → [?] → 35, what is the rule? =
4
Input: 2 → [+5] → ? =
5
? → [×2 + 1] → 7 =
6
? → [-1] → 9 =
7
Input: 6 → [?] → 15, what is the rule? =
8
Input: 2 → [×2] → ? =
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