1 6 x 8 6 x. -2x-7=-4x. 3x-4/7-4x-1/4 2. 4x-3/x+1-6x-5/2x+1. X-4/6-2x+1/3=3. 4(3х-2)-2(4х-1)-(4х-9). 2/Х-3+1/Х+2 х2+4х-1/х2-х-6. 5х-4:3+3х0-2+2х-1=3х-2. 4-6-2х/3+х 2х-х+3/2. X2+4x-21=0. X^2-2x-3/x^3-6x^2+27=0. X2-x-6 0. 0,4(Х-5)20,5(6+X)-2,5. 5-10x=-5x+10. (2x2-4x+1) (5x+10) -10x3