Ответ учителя по предмету Математика
15/22 — (4 — 1 5/6) : х = 1 5/33,
15/22 — (24/6 — 11/6) : х = 38/33,
15/22 — 13/6 : х = 38/33,
13/6 : х = 15/22 — 38/33,
13/6 : х = 45/66 — 76/66,
13/6 : х = — 31/66,
х = 13/6 : (-31/66),
х = -13/6 * 66/31,
х = -143/31,
х =
-4 19/31,
(1 3/4 — 1 19/48) * х = 1 2/3 — 3 5/7,
(7/4 — 67/48) * х = 5/3 — 26/7,
(84/48 — 67/48) * х = 35/21 — 78/21,
17/48 * х = -43/21,
х = -43/21 : 17/48,
х = -43/21 * 48/17,
х = -2064/357,
х =
-5 279/357
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