2. I don't understand the equation in 1). Do you mean:
or or ...
3. If you have some difficulties to use becker89 hint, here is a starter:
Now de-logarithmize. You'll get a quadratic equation in y. My result is: y = 7 or y = 1
4. Multiply the equation through by log(x):
De-logarithmize and solve the quadratic equation. This equation doesn't have a real solution.