Ответы на вопрос:
(х - 4 17/35) - 1 11/28 = 2 1/140 х - 4 17/35 = 2 1/140 + 1 11/28 х - 4 17/35 = 2 1/140 + 1 55/140 х - 4 17/35 = 3 56/140 х = 3 56/140 + 4 17/35 х = 3 56/140 + 4 68/140 х = 7 124/140 х = 7 31/35 проверка: (7 31/35 - 4 17/35) - 1 11/28 = 2 1/140 3 14/35 - 1 11/28 = 2 1/140 3 56/140 - 1 55/140 = 2 1/140 2 1/140 = 2 1/140
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