Solve $3^x=3^6$3x=36.
Solve $6^x=6^{-3}$6x=6−3.
Solve $6^x=6^{\frac{4}{3}}$6x=643.
Solve $\left(\frac{5}{8}\right)^x=\left(\frac{5}{8}\right)^9$(58)x=(58)9.