We can combine the left side by saying:
Know that we can rewrite log questions using the following format:
So we can write out question as:
And let's expand:
And now let's test the solutions:
Therefore our solution is
I have assumed that you meant
You can't mix log terms and number terms, all one or all the other.
How do you write 4 as
Condense the two log terms into one:
Now use the log law: If
However in this question,
Be sure to notice the base is 3, not 10!