Tolong dibantu tentang himpunan

(2x -1) /3 - 1 = x/4 - 1/6
(2x-1) /3 - 3/3 = ( 6x - 4 ) /24
(2x- 1 -3)/3 = (3x -2)/12
12(2x -2) = 3 (3x -2)
4(2x -2) = 3x -6
8x - 8 = 3x -6
8x -3x = -6 +8
5x = 2
x = 2/5