10x-5-7-x=0
9x=12
x=12/9
x=4/3
x=1 1/3
5(2х - 1) - 7 - х = 0
10x - 5 - 7 - x = 0
10x - 12 - x = 0
9x - 12 = 0
9x = 12
--------------------------
10x-5-7-x=0
9x=12
x=12/9
x=4/3
x=1 1/3
5(2х - 1) - 7 - х = 0
10x - 5 - 7 - x = 0
10x - 12 - x = 0
9x - 12 = 0
9x = 12
--------------------------