(х+1/12)/2=(2,6х-1/4)/4
(х+1/12)/2=(2,6х-1/4)/4 2 * (2,6х - 1/4) = 4 * (х + 1/12) 5,2х - 7/4 = 4х + 49/12 5,2х - 4х = 49/12 + 7/4 1,2х = 49/12 + 21/12 1,2х = 70/12 х = 70/12 : 1,2 х = 70/12 : 12/10 х = 70/12 * 10/12 х = 35/6 * 5/6 х = 175/36 х = 4 31/36