SOLUTION: I do understand factorial but not when it is done like this. Can you help me? Solve for w: (3w+1)!=7!

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Question 55693: I do understand factorial but not when it is done like this. Can you help me?
Solve for w: (3w+1)!=7!

Answer by Mona27(45) About Me  (Show Source):
You can put this solution on YOUR website!
Well, this one seems fairly easy, because 7! cannot equal the factorial of any other number except 7.
So 3w+1=7
and this gives
w=2