If you think you know maths solve this.

So i was just feeling down after having a bad day when I saw this problem, as a java and c++ programmer, it sparked me.... 

I know the real answer to this question but the answer is not so detailed, if you're interested in the solution, you can do more findings

What is 6÷2(2+1)

The real answer follows the rule of mathematics so your calculators might not help you