4. Inverse, Exponential, and Logarithmic Functions

Solve the exponential equation.

$4^{x+7}=16$

Solve the exponential equation.

${100}^x={10}^{x+17}$

Solve the exponential equation.

${81}^{x+1}={27}^{x+5}$

Solve the exponential equation.

$2\cdot {10}^{3x}=5000$