Trigonometry Examples

$e^{\ln (x - 4)} = 8$

Step 1

Exponentiation and log are inverse functions.

$x - 4 = 8$

Step 2

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

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Step 2.1

Add $4$ to both sides of the equation.

$x = 8 + 4$

Step 2.2

Add $8$ and $4$ .

$x = 12$