Решить уравнение х:1/3-5/6=8/9
X : 1/3 - 5/6 = 8/9 1/3x - 5/6 = 8/9 1/3x = 16/18 + 15/18 1/3x = 31/18 x = 31/18 :1/3 x = 31/6 (5 1/6)