3(x^2 -1) = 2(x^2 -4) +x^2 +2x 3x^2 -3 = 2x^2-8 +x^2 +2x 3x^2 -3x^2 - 2x = 3 -8 -2x = -5 x = 2,5
6х-3=4х-8+2х+2х 2х=-5 х=-2,5