A divisive math problem has gone viral because netizens simply cannot agree on the correct answer. The equation hails from the 1950s and is baffling many people for a fascinating reason: it appears that over the years, the “rules” for how to solve it have changed.

**The math problem is this:**

**9 – 9 ÷ 9 + 9 – 9 ÷ 9 = ?**

Can you work it out? Give it a try, and once you think you have the right answer, scroll down to see what all the controversy is about and what the correct answer is.

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**Here is the answer:**

9 – (9 ÷ 9) + 9 – (9 ÷ 9) = ?

9 – (1) + 9 – (1) = ?

Then we move on to solve addition and subtraction from left to right as follows:

(9 – 1) + 9 – 1 = ?

(8 + 9) – 1 = ?

17 – 1 = 16

Is this the same answer that you arrived at? If so, congratulations! Not everyone is able to solve it

The post Not Everyone Can Solve This ‘Simple’ Math Problem From the 1950s Without a Calculator appeared first on Wake Up Your Mind.