Question

Solve the following exponential equations and find the value of x: 1) 3^× + 3^× = 243​

Answer 1

Answer:

3x=2433x=243

Take the log base 3 of both sides to cancel out it’s corresponding base, 3.

log3(3x)=log3(243)log3⁡(3x)=log3⁡(243)

x=log3(243)x=log3⁡(243)

log3(243)=5log3⁡(243)=5, because 35=24335=243.

x=5  x=5  ← final answer.