Решите уравнения.

5/7x - 3/14x = - 2

3 * (2x - 1) - (5x + 1) = 2

1 целая 7/9 x - 3 целых 5/18 x + x = - 2

3 (4x - 5) - (7x + 1) = - 19,5

5/7 х-3/14 х=-2

10/14 х-3/14 х=-2

7/14 х=-2

1/2 х=-2

х=-2:1/2

х=-4

3 (2 х-1) - (5 х+1) = 2

6 х-3-5 х-1=2

х-4=2

х=2+4

х=6

1 7/9 х-3 5/18 х+х=-2

1 14/18 х-3 5/18 х+х=-2

-1 9/18 х+х=-2

-1/2 х=-2

х=2:1/2

х=4

3 (4 х-5) - (7 х+1) = - 19,5

12 х-15-7 х-1=-19,5

5 х-16=-19,5

5 х=-19,5+16

5 х=-3,5

х=-3,5:5

х=-0,7