# Evaluate log base 9 of 27

Rewrite as an equation.

Rewrite in exponential form using the definition of a logarithm. If and are positive real numbers and does not equal , then is equivalent to .

Create expressions in the equation that all have equal bases.

Rewrite as .

Since the bases are the same, then two expressions are only equal if the exponents are also equal.

Solve for .

The variable is equal to .

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Mixed Number Form:

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