SOLUTION: Twenty-one less than 4 times a number is 31. what is the number?

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Question 317185: Twenty-one less than 4 times a number is 31. what is the number?
Answer by Jstrasner(112) About Me  (Show Source):
You can put this solution on YOUR website!
hey,
For this one we need to simply write what we know:
n (number)
31 = 4n - 21
52 = 4n
13 = n
I hope this helps!