2+5(8-5)
For anyone wanting to see a different way of solving it with distribution:
2+58-55 2+40-25 42-25 17
So long as you follow the basic math rules, you can solve it in many different ways to get the same result.
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Rules
This is a science community. We use the Dawkins definition of meme.
2+5(8-5)
For anyone wanting to see a different way of solving it with distribution:
2+58-55 2+40-25 42-25 17
So long as you follow the basic math rules, you can solve it in many different ways to get the same result.
Worth a reminder that *'s get converted to italics. At first I saw the 2+58-55 and was very concerned for your education.
Let's keep it easy. There's 2 + all the other number who results in 15 = 17.
Someone may mistake by doing 2+5 then the rest of the operation, resulting in 21. But is wrong.
The high-and-mightiness quotient in this thread is reaching critical levels
My dumbahh did 2+5 like it was in parentheses and got 21
The education system did not fail me. I failed my education.