Respuesta :

[tex]\begin{gathered} x\text{ -0.1x=59.40} \\ \end{gathered}[/tex][tex]\begin{gathered} 0.9x=59.40 \\ \text{divioth sides by 0.9} \\ \frac{0.9x}{0.9}=\frac{59.40}{0.9} \\ x=66 \end{gathered}[/tex]