15/2x-3*(5 целых 11/18x)=19

15/2 х - 3*5 11/18 х = 1915/2 х - 3*101/18 х = 1915/2 х - 303/18 х = 19(135 - 303)/18 х = 19-168/18 х = 19х = 19 : (-168/18)х = -(19*18)/168х = -342/168х = -171/84х = -2 3/84х = - 2 1/28