x=3
Пошаговое объяснение:
(10:((x:3+2)*2-4)+5)-1=9
10:((x:3+2)*2-4)+5 = 9 + 1
10:((x:3+2)*2-4)+5 = 10
10:((x:3+2)*2-4) = 10 - 5
10:((x:3+2)*2-4) = 5
(x:3+2)*2-4 = 10:5
(x:3+2)*2-4 = 2
(x:3+2)*2 = 2+4
(x:3+2)*2 = 6
x:3+2 = 6 : 2
x:3+2 = 3
x:3=3-2
x:3=1
x=1*3
x=3
