Question

Solve the following equations.
log3(8x + 9) = 4

Answer 1

9

Explanation:

log3(8x + 9) = 4

Since logarithm is the inverse of exponentation, the equation can be expressed in this form, :

(8x + 9) = 3^4

(8x + 9) = 81

8x = 81 - 9

8x = 72

x = 72/8

x = 9