x + 1/3 = 1/3 : 2
х + 1/3 = 1/3 * 1/2
x + 1/3 = 1/6
x = 1/6 - 1/3
x = 1/6 - 2/6
x = -1/6
ответ: x = -1/6.
x + 1/3 = 1/3 : 2
х + 1/3 = 1/3 * 1/2
x + 1/3 = 1/6
x = 1/6 - 1/3
x = 1/6 - 2/6
x = -1/6
ответ: x = -1/6.