Today, we have a test for the mathematicians amongst you, or perhaps this is the chance for the non-mathematicians to prove their old teachers wrong.
The test is creating pandemonium across Facebook, with everyone desperate to see if they can solve it, and no pressure people but I have total confidence in our readers that they will be able to solve it easily.
There are four equations here, and three of them have the correct answer, all you need to do is solve the fourth one, how hard can it be after all? Well give it and go and let us know how you got on in the comments below.