How there are 7 enolizable hydrogens in 2‐methylcyclohex‐2‐en‐1‐one?
Actually there are exactly 7 alpha hydrogen in the given structure.  Just look that there is also a double bond and it is also considered as functional group.  So, you should count alpha hydrogen w.r.t  double bond and they are 5 . 

Finally 2 + 5 you get the required answer = 7