SOLUTION: 3 times the difference of a number and 21

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Question 990039: 3 times the difference of a number and 21
Found 2 solutions by EdenWolf, ikleyn:
Answer by EdenWolf(517) About Me  (Show Source):
You can put this solution on YOUR website!
"3 times the difference of a number and 21"
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Let x = the number.
3%2A%2821-x%29
Simplify the expression -- expand it.
63-3x

Answer by ikleyn(52835) About Me  (Show Source):