Solve: 2 ln 3 = ln(x - 4)

Use the logarithm rule 2 ln 3 = ln(3²) = ln 9. Since ln(x − 4) = ln 9, their arguments must be equal, so x − 4 = 9 and x = 13. This satisfies the domain requirement x − 4 > 0. The correct choice is C, x = 13.

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