\( 2x + \pi/6 = \pm \pi/3 + 2\pi n \).
1) \( 2x + \pi/6 = \pi/3 + 2\pi n \)
\( 2x = \pi/3 - \pi/6 + 2\pi n = \pi/6 + 2\pi n \)
\( x = \pi/12 + \pi n \).
2) \( 2x + \pi/6 = -\pi/3 + 2\pi n \)
\( 2x = -\pi/3 - \pi/6 + 2\pi n = -\pi/2 + 2\pi n \)
\( x = -\pi/4 + \pi n \).
Ответ: \( x = \pi/12 + \pi n \), \( x = -\pi/4 + \pi n \).