Question

Here is a number puzzle that uses math. Some might

call it a magic trick!
Step
4
0
8
1
17
2
0) Think of a number.
1) Double the number.
2) Add 9.
3) Subtract 3.
4) Divide by 2.
5) Subtract the number you started with
6) The answer should be 3.
14
3
4
7
3
Why does this always work? You can use the table to
try stuff out!
I JUST NEED THE BOTTOM QUESTIONS

Answer 1

I think it always work out because they try to manipulate the equation such that you'll get 3

you can actually use other values apart from the ones used