The first clue is on the elevator door, X+Y+Z = 100
Count all the X in the room. You have 7 yellow Xs.
Second clue: Y = X * X
- Y = 7 x 7
- Y = 49
Now let's try solving for Z:
- 7 + 49 + Z = 100
- 7 + 49 = 56
- 100 - 56 = 44
- Z = 44
Tap the keypad on the left and key in: 74944.
Elevator opens. Welcome to level 34.