Đáp án:
Giải thích các bước giải:
a,1/2/3.x-1/4=5/6 b,3/4-(x+1/2)=4/5 c,| x- 1/2 |-(cb2) 1/9=(cb2) 1/4
5/3 .x =5/6+1/4 x+1/2 =3/4-4/5 | x- 1/2|- 1/3 = 1/2
5/3 .x =13/12 x+1/2 =-1/20 | x- 1/2| =1/2+1/3
x =13/12:5/3 x =-1/20-1/2 | x- 1/2| =5/6
x =13/20 x = -11/20 =>x-1/2 =5/6
x-1/2 =-5/6
=>x=4/3
x=-1/3
