SOLUTION: When 3 is taken from twice a certain number, the result is the same as adding 3 to the number. Find the number.

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Question 861374: When 3 is taken from twice a certain number, the result is the same as adding 3 to the number. Find the number.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
x+3=2x-3
x=6
check
6+3=12-3
9=9