1/9:(24*1/2-2*1/2x)=3/4

24 1/2-2 1/2х=1/9:3/4
24 1/2-2 1/2х=1/9*4/3=4/27
-2 1/2х=4/27-24 1/2=4/27-49/2=8-1323/54 =
-1315/54
х=1315/54:2 1/2= 1315/54*2/5=263/27= 9 20/27