What is the difference

Question

What is the difference between ++x and x++ i am having a hard time.

Answer 1

https://www.sololearn.com/discuss/489143/?ref=app

Answer 2

One will use the value and change the value of i and in the second case it's the oposite:
i = 3;
a = -- i;
=> a = 2 and i = 2
i = 3;
a = i --;
=> a = 3 and i = 2