(2 х-3)*х-х(1+2 х)=5(4-х)

2х^2-3х-х-2х^2=20-5х х=20

2x^2 - 3x - x - 2x^2 = 20 - 5x 2x^2 - 3x - x - 2x^2 - 20 + 5x = 0 x-20=0 x=20