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29-09-2018
Mathematics

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calcula en numero que se triplica al sumar le 26

Respuesta :

29-09-2018

x + 26 = 3x

26 = 3x - x

26 = 2x

x = 26 : 2

x = 13

--------------

26 + 13 = 39

39 : 3 = 13

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