3x + x/4 + 5/2 + 5/6 = 12x + 3 - 5/12
39x + 30 + 10 = 12x - 2
12 • 3x + 12x/4 + 12•5/2 + 12•5/6 = 12(12x + 3 - 5) / 12
36x + 3x + 60/2 + 60/6 = 12x + 3 - 5
39x + 40 = 12x - 2
39x = 12x - 42
39x + 40 - 40 = 12x - 2 - 40
27x = -42
39x - 12x = 12x - 12x - 42
x = -14/9.