Solve $4^x=4^8$4x=48.
Solve $x^5=3^5$x5=35.
Solve $9^x=9^{-4}$9x=9−4.
Solve $8^{-7}=x^{-7}$8−7=x−7.
Solve exponential equations in one variable by determining a common base and by using logarithms recognizing that logarithms base 10 are commonly used