2/3 : (2/3х -2/3) - 2/3 = 2/3 решите уравнение

2/3 : (2/3x - 2/3) - 2/3 = 2/3
2/3 : (2/3x - 2/3) = 2/3 +2/3 = 4/3 = 1цел. 1/3
2/3x - 2/3 = 2/3 : 1цел. 1/3 = 1/2
2/3x = 1/2 +2/3 = 1цел. 1/6
x = 1/6 : 2/3 = 1/4
x = 1/4