Think of a number.
Add 7.
Double the result.
Subtract 8.
Double the result.
Add 12.
Divide by 4.
Subtract 6.
Your answer will be the original number. Explain how this trick works.
3 answers
Your subject is math.
Think of a number.... x
Add 7.... x+7
Double the result..... 2x+14
Subtract 8....2x+6
Double the result.... 4x + 12
Add 12. 4x + 24
Divide by 4.... x + 6
Subtract 6.... x
Add 7.... x+7
Double the result..... 2x+14
Subtract 8....2x+6
Double the result.... 4x + 12
Add 12. 4x + 24
Divide by 4.... x + 6
Subtract 6.... x
6