Respuesta :

- (x + 1)

number - (x + 1), whereas x starts at 0 and decreases every time.

To better explain this:

100 - (0 + 1) = 100 - 1 = 99

99 - (1 + 1) = 99 - 2 = 97

97 - (2 + 1) = 97 - 3 = 94

And so on...