We have the following equation,

By taking logarithm base 3 to both sides, we have

By the powers rule for logarithms, we get

Now, by the quotient rule, we have that

because base 3 logarithm of 1 is zero. Then, we have

But

then, we obtain

By multiplying both sides by -1, we have

Finally, since

The answer is x= - 2.6309