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123

This is pretty easily figured out, especially when it's in text and not verbal, but this could be a fun trick to use on kids or liberals.

Think of a number, but don't tell anyone.

Double it.

Add 18.

Cut it in half.

Now subtract the first number you thought of.

Do a couple of magic-like things while pretending to think really hard

The number you have now is....9.

This is pretty easily figured out, especially when it's in text and not verbal, but this could be a fun trick to use on kids or liberals. Think of a number, but don't tell anyone. Double it. Add 18. Cut it in half. Now subtract the first number you thought of. *Do a couple of magic-like things while pretending to think really hard* The number you have now is....9.

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[–] • 2 pts

{(2x+18)/2}-x = (x+9)-x = ... 9

No shit.

[–] [deleted] • 1 pt

Ooo turned that fucker into an algebraic equation and very nicely I'd like to say. Hell the subtracting the original number from double after adding 18 just leaves you with the 18 so it'll work with any whole number so it end up 18/2 no matter what you choose so it's nerdy fun for all ages. :)