Step-by-step explanation:
[tex] \frac{5}{6} = \frac{x}{ - 12} \\ by \: cross \: multiplication \\ 6 \times x = 5 \times ( - 12) \\ 6x = - 60 \\ x = \frac{ - 60}{6} \\ x = - 10[/tex]
Answer: x= -10
