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Solve (1/81)^x = 243^x-9
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Solve (1/81)^x = 243^x-9

User Xandermonkey
by
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1 Answer

1 vote

Answer:

x=5

Explanation:

(1/81)^x=(243)^x-9

(1/3^4)=3^5(x-9)

3^-4x=3^5(x-9)

-4x=5(x-9)

-4x=5x-45

-4x-5x=-45

-9x=-45

x=5

User Grigory
by
7.1k points
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