помогите пжж срочно!!х+2/9 -1=2х+1/18 -х/6

x + (2-9)/9 = (12x-x)/6 + 1/18x - 7/9 = 11x/6 + 1/18x - 11x/6 = 1/18 + 7/9(6x - x)/6 = (1 + 14)/18-5x/6 = 15/18-5x/6 = 5/6x = - 1