[tex] \frac{x}{x + 1} + \frac{1}{2} = \frac{3}{1} [/tex]
[tex] \frac{x}{x + 1} = \frac{3}{1} - \frac{1}{2} [/tex]
[tex] \frac{x}{x + 1} = \frac{5}{2} [/tex]
[tex]2x = 5x + 5[/tex]
[tex]3x = - 5[/tex]
[tex]x = \frac{ - 5}{3} [/tex]
