ПОМОГИТЕ РЕШИТЬ УРАВНЕНИЕ

1)18,3/6=c/0,6
2) 3x-1,2 / 7 = 2x-0,6 / 3

1) 18 3/6 = с : 6/10                    2) 3х - 12/10 : 7 = 2х - 6/10 : 3

111/6 = с : 6/10                              3х - 12/70 = 2х - 6/30 

с = 111/6 * 6/10                              3х - 2х = - 6/30 + 12/70  

с = 111/10                                       х = -42/210 + 36/210

с = 11,1                                           х = - 6/210 = - 1/35