SOLUTION: change to an algebraic expression: one fifth of a number, subtracted from 21

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Question 479663: change to an algebraic expression: one fifth of a number, subtracted from 21
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
change to an algebraic expression: one fifth of a number, subtracted from 21
.
Let n = the number
then
21 - (1/5)n
or
21 - n/5