Решите уравнение:
2 1/3x - 2 1/3= 2 1/3

2 1/3х - 2 1/3 = 2 1/3,
7/3х = 7/3 + 7/3,
7/3х = 14/3,
х = 14/3 : 7/3,
х = 14/3 * 3/7,
х = 14/7,
х = 2,
Проверка:
2 1/3 * 2 - 2 1/3 = 2 1/3,
7/3*2 - 7/3 = 7/3,
7/3 = 7/3