Пошаговое объяснение:
(3-х)+5/6=2 3/6
3 - x = 2 3/6 - 5/6
3 - x = 1 2/3
x = 3 - 1 2/3
x = 1 1/3
(4/9+х) - 1 1/9=3/9
4/9 + x = 3/9 + 1 1/9
4/9 + x = 1 4/9
x = 1 4/9 - 4/9
x = 1
