Study = Fail ?

Study = No Fail ---- (1)
No Study = Fail ---- (2)

(1) + (2):
Study + No Study = No Fail + Fail
Study ( 1 + No) = Fail ( No + 1)

cancel off ( No + 1) at both sides
therefore; Study = Fail

*haha... it's just a sharing... but I think there is quite a number of people knowing about this special equation?* =X