Respuesta :

Hi1315

Answer:

[tex] {13}^{3} x - 1 = 91 \\ {13}^{3}x = 91 - 1 \\ {13}^{3}x = 90 \\ 2,197x = 90 \\ \frac{2197x}{2197} = \frac{90}{2197} \\ x = 0.04[/tex]