SOLUTION: What is the equivalent mathematical equation of: one-half the product of a number and seven is 21

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Question 236831: What is the equivalent mathematical equation of:
one-half the product of a number and seven is 21
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x/2+7=21
x/2=21-7
x/2=14
x=28 ans.
Proof:
28/2+7=21
14+7=21
21=21