7/9х-5/18х=-3
1/2х= -3
х=-3 : 1/2
х=-6
7/9 - 5/18 = 14/18 - 5/18 =9/18 =1/2
-3/1 : 1/2 =-3/1 *2/1=-6/1=-6
7/9х-5/18х=-3
1/2х= -3
х=-3 : 1/2
х=-6
7/9 - 5/18 = 14/18 - 5/18 =9/18 =1/2
-3/1 : 1/2 =-3/1 *2/1=-6/1=-6