Deleted

Nice puzzle! Bump for semi solved. I've got Q10 but I'm not interested in Elder Flag. So I will skip the four questions I've left to solve.

Bump, also stuck on 10. I think I know what I'm supposed to do, but no luck yet.

Bump for almost solved. Just stuck on Q10.

Bump for solved!

Bump for solved, it was nice to see algebra mentioned XD. Thanks!

bump for solved!

Last bump as I finally solved this

Bump for solved!

still stuck

Solved all of them... except 7.

Edit: Solved.

solved, bump :)

View attached image.