Bonjour ;
106)
[tex] \dfrac{2-x}{x-1} = 2 \Rightarrow 2 - x = 2(x - 1) \Rightarrow 2 - x = 2x - 2 \\\\ \Rightarrow 4 = 3x \Rightarrow x \dfrac{4}{3} .[/tex]
107)
[tex]\dfrac{3}{x+2} = \dfrac{1}{3x} \Rightarrow 9x = x + 2 \Rightarrow 8x = 2 \Rightarrow x = \dfrac{2}{8} = \dfrac{1}{4} .[/tex]
108)
[tex]\dfrac{5x-3}{x-2} = -\dfrac{3}{x} \Rightarrow x(5x-3) = - 3(x-2) \Rightarrow 5x^2 - 3x = -3x + 6 \\\\ 5x^2 = 6 \Rightarrow x^2 = \dfrac{6}{5} \Rightarrow x = \pm\sqrt{ \dfrac{6}{5}} .[/tex]
