6:1,8=3x+0,6:2,88 ответ: 3

6 : 1,8 = 3x + 0,6 : 2,88,60/18 = 3х + 60/288,10/3 = 3х + 15/72,3х = 10/3 - 15/72,3х = 240/72 - 15/72,3х = 225/72,х = 225/72 : 3,х = 225/72 * 1/3,х = 75/72,х = 1 1/24