# Fanciness!

Ok, pick a number, any number Double it. Add 9. Subtract 3. Divide by 2. Subtract your original number. Let me guess.... your answer was 3!

Here's how it works...if you turn it into an equation you should start with... let x equal your original number. Double it.-2x Add 9: 2x + 9 subtract 3: 2x + 6 divide by 2: x+3 subtract your original number: you get 3.. thats why your answer is 3!

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\begin{align} F &= \dfrac{2x+9-3}{2} - x \\ &= \dfrac{2x+6}{2} -x\\ &= x+3 -x \\ &= \boxed{3} \\ \end{align}

- 8 months, 1 week ago

Hi

- 8 months ago

Hi

- 8 months ago

Why

- 6 months, 3 weeks ago

@DYLAN MARSHALL, hey about the project, can you send me url of image of the eccentric rotor? I want to see what you mean... just so you know, it's me. elmo.

- 4 months, 2 weeks ago

@DYLAN MARSHALL, aka "Algebra whiz kid", How is the algebra going? Try my problem "https://brilliant.org/problems/this-is-what-i-had-for-hw/". It's HLS (Harvard Law School) Homework :)

- 8 months, 3 weeks ago

Weird person wasting my time

- 8 months, 2 weeks ago

Meanie :(

- 8 months, 2 weeks ago