2целых 1/6 + (х+1целая 1/12) = 4целых 3/4
2 + ( x + 1 ) = 4 x + 1 = 4 - 2 x + 1 = 4 - 2 x + 1 = - x + 1 = x = - 1 x = - x = x = x = 1 x = 1 = 1,5