2/3[(2x - 1)(x - 4) + 3(x - 1/3)(1/3 + x)] = 2/3(5x² - x) + 14/9 =

2/3[2x² - 8x - x + 4 + 3(x² - 1/9)] = 10/3x² - 2/3x + 14/9 =

2/3[2x² - 9x + 4 + 3x² - 1/3] = 10/3x² - 2/3x + 14/9 =

2/3[5x² - 9x + 4 - 1/3] = 10/3x² - 2/3x + 14/9 =

10/3x² - 6x + 8/3 - 2/9 = 10/3x² - 2/3x + 14/9 =

- 6x + 2/3x = 2/9 - 8/3 + 14/9 =

(- 54x + 6x)/9 = (2 - 24 + 14)/9 =

- 48x = - 8 =

48x = 8 =

48x/48 = 8/48 =

x = 1/6