A question about the order of operations.

Question

Hello everyone, I thank you for taking the time to view my post. Anyway, into the main point.

if x = 7 and y = -3

why does z = ++x + y-- - ++y outputting 9?

8 + (-3) - (-2) is supposed to be 7?

Answer 1

8 + y-- - -2 //prefix operators first
8 + -2-- - -2 //8 is added to y's new value of -2 before postfix
6 - -3
9