(327х - 5295) : 57 = 389
327х - 5295 = 389 * 57
327х - 5295 = 22173
327х = 22173 + 5295
327х = 27468
х = 27468 : 327
х = 84
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Проверка: (327 * 84 - 5295) : 57 = 389
(27468 - 5295) : 57 = 389
22173 : 57 = 389
389 = 389
(27х + 11) * 315 = 11970
27х + 11 = 11970 : 315
27х + 11 = 38
27х = 38 - 11
27х = 27
х = 27 : 27
х = 1
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Проверка: (27 * 1 + 11) * 315 = 11970
38 * 315 = 11970
11970 = 11970