Ответ:
Пошаговое объяснение:
12х-5+8х-11х+3=29.
9x - 2 = 29
9x = 29 + 2
9x = 31
x = 31 : 9
x = 3 4/9
4целых2/3:(х-17целых5/6)-1целая 1/5=4/5
4 2/3 : ( x - 17 5/6) = 4/5 + 1 1/5
4 2/3 : ( x - 17 5/6) = 2
x - 17 5/6 = 4 2/3 : 2
x - 17 5/6 = 14/3 * 1/2
x - 17 5/6 = 7/3
x = 7/3 + 17 5/6
x = 14/6 + 17 5/6
x = 17 19/6
x = 20 1/6