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Karo-lina-s [1.5K]
3 years ago
7

Please help a bro brainiest3^-x=243​

Mathematics
2 answers:
Sveta_85 [38]3 years ago
4 0

Answer:

x=-240

Step-by-step explanation:

g100num [7]3 years ago
4 0

Answer: x = - 5

Step-by-step explanation:

3^{-x} = 243

3^{-x} = 3^{5}

-x = 5

x = -5

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