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\frac{3^{5}}{3^{-4}}=3^{m}
To multiply powers of the same base, add their exponents. Add 5 and 0 to get 5.
3^{9}=3^{m}
To divide powers of the same base, subtract the denominator's exponent from the numerator's exponent. Subtract -4 from 5 to get 9.
19683=3^{m}
Calculate 3 to the power of 9 and get 19683.
3^{m}=19683
Swap sides so that all variable terms are on the left hand side.
\log(3^{m})=\log(19683)
Take the logarithm of both sides of the equation.
m\log(3)=\log(19683)
The logarithm of a number raised to a power is the power times the logarithm of the number.
m=\frac{\log(19683)}{\log(3)}
Divide both sides by \log(3).
m=\log_{3}\left(19683\right)
By the change-of-base formula \frac{\log(a)}{\log(b)}=\log_{b}\left(a\right).