.
(log2(x) - log0.5(x) -2)/(3log2(x) +2)=4
-----------------------------------------------
Your equation is 
 = 
.
First, notice that log(0.5,(x)) = -log(2,(x)). It is easy to understand if you know what the logarithm is.
Second, introduce a new variable y = log(2,(x)) for brevity.
Then your equation will take the form
 = 
,   or  
 = 
.
I am sure you can easily solve it.
The solution is y = -1.
Then you need to solve the equation 
 = -1,
which will give you the answer x = 
.
Answer. x = 
.
Introducing new variable is the standard way to solve equations like this one.