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Popular >

-1/81 =-3^x

Solution

- \frac{1}{81} = - 3^{x}

Solution

x = - 4

Solution steps

- \frac{1}{81} = - 3^{x}

Move

3^{x}

to the left side

- \frac{1}{81} + 3^{x} = 0

Move

\frac{1}{81}

to the right side

3^{x} = \frac{1}{81}

Apply exponent rules

x = - 4

Popular Examples

9^{-x+5}=27^{6x-10}

9^{- x + 5} = 2 7^{6 x - 10}

e^{x + 2} = 5

e^{x + 2} = 8

8^{x+1}=2^{2x+7}

8^{x + 1} = 2^{2 x + 7}

e^{2 x} = 6.27

Frequently Asked Questions (FAQ)

What is the answer to -1/81 =-3^x ?
The answer to -1/81 =-3^x is x=-4
Solve for x: -1/81 =-3^x
The solution is x=-4