[x- 1 5\6]+2 11\18=10 19\24

х-1 5/6=10 19/24-2 11/18
решим правую часть
10 19/24-2 11/18=10 57/72-2 44/72=8 13/72
х-1 5/6=8 13/72
х=8 13/72+1 5/6
х=8 13/72+1 60/72
х=9 73/72
х=10 1/72
проверка
(10 1/72-1 5/6)+2 11/18=10 19/24
(10 1/72-1 60/72)+2 11/18=10 19/24
(9 73/72-1 60/72)+2 11/18=10 19/24
8 13/72+2 11/18=10 19/24
8 13/72+2 44/72=10 19/24
10 57/72=10 19/24
10 19/24=10 19/24