9-(x-4/5) :1/2=1
=> (x-4/5):1/2= 9-1=8
=> x- 4/5 =8. 1/2=4
=>x= 4+4/5=24/5
9 - (x - 4/5) :1/2 = 1
( x - 4/5 ) : 1/2 = 8
x - 4/5 = 8/2
x = 8/2 + 4/5
x = 24/5
9-(x-4/5)=1 x 1/2
9-(x-4/5)=1/2
x-4/5 =9-1/2
x-4/5 =17/2
x = 17/2 + 4/5
x = 93/10
9-(x-4/5):1/2=1
=>(x-4/5):1/2=9-1
=>(x-4/5):1/2=8
=>x-4/5=8x1/2
=>x-4/5=4
=>x=4+4/5
=>x=24/5
9 - ( x - 4/5 ) : 1/2 = 1
( x - 4/5 ) : 1/2 = 9 - 1
( x - 4/5 ) : 1/2 = 8
x - 4/5 = 8 x 1/2
x - 4/5 = 4
x = 4 + 4/5
x = 24/5
Chúc bạn học tốt!