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

5/7х-3/14х=-2
10/14х-3/14х=-2
7/14х=-2
1/2х=-2
х=-2÷1/2
х=-4

3(2х-1)-(5х+1)=2
6х-3-5х-1=2
х-4=2
х=2+4
х=6

1 7/9х-3 5/18х+х=-2
1 14/18х-3 5/18х+х=-2
-1 9/18х+х=-2
-1/2х=-2
х=2÷1/2
х=4

3(4х-5)-(7х+1)=-19,5
12х-15-7х-1=-19,5
5х-16=-19,5
5х=-19,5+16
5х=-3,5
х=-3,5÷5
х=-0,7