a) 5/9x-7/4x+17/18x=-1/4 10/18x+17/18x-7/4x=-1/4 27/18x-7/4x=-1/4 3/2x-7/4x=-1/4 6/4x-7/4x=-1/4 -1/4x=-1/4 x=-1/4:(-1/4) x=1б)1/6x-0,82=3/8x-1,37 1/6x-3/8x=-1,37+0,82 4/24x-9/24x=-0,55 -5/24x=-0,55 x=-0,55:(-5/24) x=2,64в)1/9x+7/18x-11/27x=2 1/2 2/18x+7/18x-11/27x=2,5 1/2x-11/27x=2,5 27/54x-22/54x=2,5 5/54x=2,5 x=2.5 : 5/54 x=27г)0,07-3 1/9x=0.26-x -28/9x+x=0,26-0,07 -28/9x+9/9x=0,19 -19/9x=0.19 x=0,19 : (-19/9) x=-0,09