50(2{[25(4m+13)-200]+D}-40)+y-10500 how do you simplify this birthdate problem?
Write the number of the month you were born.
Multiply by 4.
Add unlucky 13.
Multiply by 25.
Subtract 200.
Add the day of the month of your birthday.
Double the result.
Subtract 40.
Multiply 50.
Add the last 2 digits of your birth year.
Subtract 10,500.

I can do this, I just can't simplify to show how to solve and why it works. I know it's 10000m +100d = y but can't get it to that.

Question

50(2{[25(4m+13)-200]+D}-40)+y-10500 how do you simplify this birthdate problem?
 Write the number of the month you were born.
Multiply by 4.
Add unlucky 13.
Multiply by 25.
Subtract 200.
Add the day of the month of your birthday.
Double the result.
Subtract 40.
Multiply 50.
Add the last 2 digits of your birth year. 
Subtract 10,500.

I can do this, I just can't simplify to show how to solve and why it works. I know it's 10000m +100d = y but can't get it to that.

anonymous · Answer

What part can you get to?