Ответ:

Пошаговое объяснение:

(х - 1/3) + 1/6 = 1/3

x - 1/3 = 1/3 - 1/6

x - 1/3 = 2/6 - 1/6

x - 1/3 = 1/6

x = 1/6 + 1/3

x = 1/6 + 2/6

x = 3/6 = 1/2