Math Puzzle

Description
It's just a simple mathematics problem. You will be given a math's problem with 4 answers, Only one will be correct and will unlock the safe to be hacked.

How To Solve
When you start, You'll be shown a math question and 4 different options of answers with one being correct. If you pick the correct answer another question will show with different answer options, in this case in the picture it is 1 + 6, That means the correct one is 7.

Glitches
The math puzzle occasionally has the glitch where two of the same numbers show up