Question

If you double my number, then add 2,

divide by 20 and add -1, the result is 0. What's my number?

Answer 1

77,464.4

Explanation:

its right

Answer 2

9

Explanation:

9 doubled is 18.

18 plus 2 is 20.

20 divided by 20 is 1.

1 plus -1 is 0.