Precalculus Examples

$\ln (x - 2) = \ln (9)$

Step 1

For the equation to be equal, the argument of the logarithms on both sides of the equation must be equal.

$x - 2 = 9$

Step 2

Move all terms not containing $x$ to the right side of the equation.

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Step 2.1

Add $2$ to both sides of the equation.

$x = 9 + 2$

Step 2.2

Add $9$ and $2$ .

$x = 11$