Respuesta :

Step-by-step explanation:

[tex]( \frac{1}{ {9}^{3} } ) = {9}^{n} [/tex]

[tex] {9}^{ - 3} = {9}^{n} [/tex]

[tex]n = - 3[/tex]

[tex]HOPE \: IT \: HELPS \: YOU[/tex]

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