Ответ:

Пошаговое объяснение:

1)4/7х-4/7=2/7+х

4/7х-х=2/7+4/7

-3/7х=6/7

х=6/7:(-3/7)

х=-2

2) 4 5/9-1/6х=5+1/2х

-1/6х-1/2х=5-4 5/9

-2/3х=1 5/9

х=14/9:(-2/3)

х=-7/3 = - 2 1/3

3) 5х-7,5=4 2/3х - 8 3/14

5х-4 2/3х=-8 3/14+7 1/2

1 2/3х = -10/14

х=-10/14:5/3

х=-3/7

4) 1 7/9х-1 1/9=4 2/9-4 2/9х

1 7/9х+4 2/9х=4 2/9+1 1/9

6х=5 1/3

х=16/3:6

х=8/9