arithmetic

How does this work “Think of a #. Add 7. Double the result. Subtract 8. Double the result. Add 12. Divide by 4. Subtract 6. Your answer will be the original number.

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1. Think of a #. ---- x
Add 7 ---- x+7
Double the result ----- 2x+14
subract 8 ---- 2x+6
double the result ---- 4x+12
add 12 ------ 4x + 24
divide by 4 ---- x + 6
subtract 6 ---- x

Mathemagics!

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posted by Reiny

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