4 4/27-x=1 8/9 , x+2,25=6 4/9-2 1/2 , 6 2/3-(x+0,25)=2 1/6

4 4/27-х=1 8/9х= 4 4/27 - 1 24/27х=3 31/27-1 24/27х=2 7/27х+2,25=6 4/9 - 2 1/2х+2,25= 6 8/18 - 2 9/18=5 26/18-2 9/18х+2,25= 3 17/18х=3 17/18-2 1/4=3 34/36 - 2 9/36 = 1 25/366 2/3-(х+0,25)=2 1/6Х+0,25=6 4/6-2 1/6=4 3/6=4 1/2=4,5Х=4,5-0,25=4,25