3\4x – 2\3x + 1 =1\2x + 1\6 знак "\" черта дроби.
9/12x - 8/12x - 6/12x = 1/6 +( -6/6) (-1/12x) - 6/12x = 1/6 + (-6/6) (-1/12x) + (-6/12x) = - (6/6 - 1/6) -7/12x=-5/6 x= -5/6 : 12/7 x= -10/7 x= -0,7