Question

How do you solve `log_9 (3x)+log_9 2 =2`?

Answer 1

`x=13.5`

Explanation:

`log_9(3x)+log_9(2)=2`

`hArrlog_9(3x×2)=2`

`hArr3x×2=9^2` or

`6x=81` i.e.

`x=81/6=27/2=13.5`