3x 9x 12 3 4 2x. X^2/3-X=2x/3-x. (X-2)^3. 2^X=3^X. X2/x+3=2x+3/x+3. 2x 3x 2 3 x2 4x 3x x 7 2. 12x+7x²=-5. (X-6)(X+2)=-12. 4x-7+5x2=5-4x+6x. X2-5x+6/x-3 0. 2x-(4-5x)=-(6-3x). 3(X-3)=X+2(X+5). 2x/x+3+x-6/x-3 2. X 5 2 0 X 4 10. X+5/X-2-28/x2-4 12/5. 2x 7 4 x 0