[tex] \frac{3 + x}{3} = \frac{x}{2} [/tex]
[tex] \frac{3}{3} + \frac{x}{3} = \frac{x}{2} [/tex]
[tex]1 + \frac{x}{3} = \frac{x}{2} [/tex]
[tex]1 = \frac{x}{2} - \frac{x}{3} [/tex]
[tex]1 = \frac{3x}{6} - \frac{2x}{6} [/tex]
[tex]1 = \frac{x}{6} [/tex]
[tex]1 \times 6 = x[/tex]
[tex]6 = x[/tex]
