I'm physic an I can prove it
What I got was a wrong answer, since this formulation of the problem only works for the year 2017. It should be obvious which step contains the error.
There are several other spelling errors here, including in the title. These are left as an exercise for the reader.
1 pick any number 1-10
2 multiply the number by 2
3 add 5 to the total
4 multiply your new total by 50
5 if you already had your birthday this year add 1767 if you haven't had your birthday this year add 1766
6 subtract from your total the year you were born
Now your total should be a 3 digit number unless you picked 10 in the beginning or your younger than 10.
The first number should be the number you picked at the start.
The remaining numbers are your age.