Реши кравнение (458297-x)+90687=111312
(458.297 - х) + 90.687 = 111.312 458.297 - х = 111.312 - 90.687 458.297 - х = 20.625 х = 458.297 - 20.625 х = 437.672 проверка: (458.297 - 437.672) + 90.687 = 111.312 20.625 + 90.687 = 111.312 111.312 = 111.312