14-03-2021
Mathematics

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please help a bro brainiest
3^-x=243

Respuesta :

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14-03-2021

Answer:

x=-240

Step-by-step explanation:

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14-03-2021

Answer: [tex]x = - 5[/tex]

Step-by-step explanation:

[tex]3^{-x} = 243[/tex]

[tex]3^{-x} = 3^{5}[/tex]

[tex]-x = 5[/tex]

[tex]x = -5[/tex]

Answer Link

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