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21-04-2017
Mathematics

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the sum of 2 times a number and 5 times its reciprocal is 23/3. find the number(s).

Respuesta :

21-04-2017

Assume X is the number.
2X + 5 1/x = 23/3
3(2X² + 5) = 23X
6X² - 23X + 15 = 0

X = 3

Hope that helps you.

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