(16.2-x)×3.2-50.08=-8.12-5.1x
51,84 - 3,2х - 50,08 = -8,12 - 5,1х 5,1х - 3,2х = -51,84 + 50,08 - 8,12 1,9х = -9,88 х = - 5,2