3 ( 2x - 5 ) - 4x = 5 ( x- 9) + 27 Надо решить.
3 ( 2x - 5 ) - 4x = 5 ( x- 9) + 27 6х-15-4х = 5х-45+27 2х-15 = 5х - 18 2х-5х = -18+15 -3х = -3 х = 1