Precalculus Examples

$12 x = 5^{x + 4}$

Step 1

Reduce by cancelling the common factors.

$12 x = 5^{x + 4}$

Step 2

Convert the exponential equation to a logarithmic equation using the logarithm base $(5)$ of the left side $(12 x)$ equals the exponent $(x + 4)$ .

$\log_{5} (12 x) = x + 4$