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Half the difference of 20 and a number in algebraic expression?
Updated: 4/28/2022
Wiki User
∙ 11y agoBest Answer
You have to assign some variable name to "a number", for example, "n". The difference would be:
20 - n
Half this difference is:
(1/2) (20 - n)
Or alternately:
(20 - n) / 2
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