Question

if 4 log 3/9+9log83/x find value of x

Answer 1

The question is not properly written.  is there a "=" missing ?   We must use the parentheses for clearly writing the question, or we could also use the equation editor   (CLICK ON THE  pi SYMBOL below this text window while creating a question or writing the answer.)

is this the question ?
  (4 Log 3) / 9  =  (9 Log 83 ) / x
   x = [81/4] * [ Log 83 / Log 3 ]  =  20.25  Log₃ 83

Or, if this is the question:
     4 Log (3/9)  = 9 Log (83/x)
        Log (3/9)⁴  =  Log (83/x)⁹
        1/3⁴ = (83/x)⁹
         (1/3)^(4/9)  = 83 /x                      ^ means exponent
            x = 83 *  3^(4/9)