You must log in or register to comment.
This works for all numbers ending in 9:
x*9+x+9=x(9+1)+9=10x+9It makes sense, it’s basically always 10*x+9.
Doesn’t make much sense for negative values of X, nor decimal numbers.
Then simply change the statement to say for any whole number X
My man!
Have you, esteemed reader, ever been to Neil’s lair, The Hayden Planetarium? They’ve got freeze-dried ice cream in the gift shop!
Nice!
Nice!
Hello! My name is Tesla Musk and you are hired!
It’s my man DeGrasse!
