Răspuns:
{[(3x - 1) • 2 - 6] : 2} - 4 = 6
[(3x - 1) • 2 - 6] : 2 = 6 + 4
[(3x - 1) • 2 - 6] : 2 = 10
(3x - 1) • 2 - 6 = 10 • 2
(3x - 1) • 2 - 6 = 20
6x - 2 - 6 = 20
6x - 2 = 20 + 6
6x - 2 = 26
6x = 26 + 2
6x = 28
x = 28/6 (simplificăm cu 2) => x = 14/3
