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Solve for x
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Solve for x (complex solution)
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9\times 27^{2x}=81
Use the rules of exponents and logarithms to solve the equation.
27^{2x}=9
Divide both sides by 9.
\log(27^{2x})=\log(9)
Take the logarithm of both sides of the equation.
2x\log(27)=\log(9)
The logarithm of a number raised to a power is the power times the logarithm of the number.
2x=\frac{\log(9)}{\log(27)}
Divide both sides by \log(27).
2x=\log_{27}\left(9\right)
By the change-of-base formula \frac{\log(a)}{\log(b)}=\log_{b}\left(a\right).
x=\frac{\frac{2}{3}}{2}
Divide both sides by 2.