Respuesta :

[tex] \frac{1}{6} = \frac{x-7}{12} \\ \\ \frac{1}{6} \times 12 = x - 7 \\ \\ \frac{12}{6} = x - 7 \\ \\ 2 = x - 7 \\ \\ 2 + 7 = x \\ \\ 9 = x \\ \\ x = 9 \\ \\ [/tex]

The final result is: x = 9