(2,4х+х):2=1,36 помогите с уравнением

Question

(2,4х+х):2=1,36 помогите с уравнением

Answer 1

(2,4х + х) / 2 = 1,36
2х + х = 2,72
3х = 2,72
х = 2,72/3
х = 272/100  / 3 = 272/300 = 68/75

Answer 2

(2,4х+х):2=1,36
3,4х:2=1,36
3,4х=1,36*2
3,4х=2,72
х=2,72:3,4
х=0,8