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

Munem Shahriar - 8 months, 1 week ago

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Hi

Dylan Marshall - 8 months ago

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Hi

Brilliant Member - 8 months ago

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Why

Dylan Marshall - 6 months, 3 weeks ago

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@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.

Harry James Granger - 4 months, 2 weeks ago

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@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 :)

Brilliant Member - 8 months, 3 weeks ago

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Weird person wasting my time

Dylan Marshall - 8 months, 2 weeks ago

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Meanie :(

Brilliant Member - 8 months, 2 weeks ago

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