Ответ Автор - maymr 2 2/3x - 1 5/7 = 3 1/212 2/3x = 3 1/21 + 1 5/72 2/3x = 3 1/21 + 1 15/212 2/3x = 4 16/218/3x = 100/21x = 100/21 : 8/3x = 100/21 * 3/8x = 25/14x = 1 11/14Ответ: 1 11/14