SOLUTION: Seven added to four-fifths of a number equals fifteen.What is the number?

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Question 1066742: Seven added to four-fifths of a number equals fifteen.What is the number?
Answer by Alan3354(69443) About Me  (Show Source):
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Seven added to four-fifths of a number equals fifteen.What is the number?
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How much is 4/5 of the number before 7 was added?