Rozwiąż równanie. a) [latex] -frac{6}{x} = frac{1}{3} [/latex] b)[latex] frac{6x - 3}{ x + 3} = 3[/latex] c) [latex] frac{-x - 4}{x + 2} = 2[/latex]

[latex]- frac{6}{x}= frac{1}{3} D=Rsetminus{0} \ x=-18[/latex] [latex] frac{6x-3}{x+3}=3 D=Rsetminus{-3}\ 6x-3=3(x+3)\ 6x-3=3x+9\ 3x=12\ x=4 [/latex] [latex] frac{-x-4}{x+2}=2 D=Rsetminus{-2}\ -x-4=2(x+2)\ -x-4=2x+4\ -3x=8\ x=- frac{8}{3} [/latex]