What is the solution for this math problem

This math problem divides the net

Mathematics is actually simple because there is always an unambiguous solution. Not so on the Internet, where you can argue about whether 1 + 1 is always 2. Admittedly, it's not that easy with the following example, because this math problem sparked a huge discussion on Twitter and is not quite as easy as it seems.

The task

A few days ago, user @pjmdoll posted the following equation on Twitter with the request to solve it: 8: 2 (2 + 2) =? He himself concluded that the solution must be 1. Other users corrected that it was 16. And then the tweet "exploded", as they say in Twitter. User @pjmdoll has received over 15,000 "likes" and 4,000 retweets since July 28th. According to Twitter statistics, over 20,000 users talk about it.

The word "entertain" is probably less appropriate, because the answers are wild. There are Fraction 1 and Fraction 16, and both accuse each other of being a nut in math - and see the end of society approaching.

The solution

And what is right now? You have to use the correct operator precedence (dot before dash), pay attention to the brackets and calculate from left to right. The correct answer is 16. There is tutoring on Wikipedia and the "New York Times", where Steven Strogatz, Professor of Mathematics at Cornell University, explains the whole thing step by step. However, he also criticizes the fact that such tasks only confuse students and that they have to be stubbornly calculated down according to arbitrary rules. Instead, teachers should introduce their students to more interesting parts of math. (red, 6/8/2019)