SOLUTION: What is the equation for the following statement,"One-half of a number decreased by 3 is 21."

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Question 565294: What is the equation for the following statement,"One-half of a number decreased by 3 is 21."
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
number be x
half the number = x/2
decreased by 3
(x/2) -3 =21