А) х+8/2+3-2х/5=3. б) х-3/2+2х-4/3=-1. в) 3х-1/5-х+2/3=1. г) 4х-3/4+1-х класс. 45 .

В) 3х-1/5-х+2/3=1; 2х=1-2/3+1/5; 2х=1/3+1/5; 2x=8/15; x=8/15*1/2; x=8/30; х=4/15; г) 4х-3/4+1-х/3=-2; 4x/1-1x/3=-2+3/4-1; 11x/3=-3/1+3/4; 11x/3=-9/4; 11x=-27/4; x=-27/4*1/11; x=-27/44

3х/5=-8/2
3х=-4*5
х=-20/3
х=-6 2/3

3х-9/6-8/6=-1
3х=-1+17/6
3х=11/6
х=11/18

2х-3/15+10/15=1
2х=1-7/15
х=8/15 : 2
х=4/15

11х/3+1/4=-2
11х/3=-9/4
х=-9/4 : 11/3
х=--27/44