Решите уравнение: (43 5/43+x)-31 8/43=19 40/43
(43 5/43 + х) - 31 8/43 = 19 40/43 43 5/43 + х = 19 40/43 + 31 8/43 = 50 48/43 = 51 5/43 х = 51 5/43 - 43 5/43 = 8