SOLUTION: Solve for a. (a/x)^3 + (b/x) = c

Question 1208662: Solve for a.

(a/x)^3 + (b/x) = c

Answer by ikleyn(52803) (Show Source): You can put this solution on YOUR website!
.
Solve for a.
(a/x)^3 + (b/x) = c
~~~~~~~~~~~~~~~~~~~

You start from

     +  = c.


    As your starting equation is written in this form, 
    it is assumed implicitly that x =/=0.


Isolate the term with "a" in the left side

     = c - .


Since left side is the fraction, write right side as a fraction, too

     = .


It is the same as 

     = .


Multiply both sides by  

     =  = 


Now take cube roots of both sides

    a =  .


It is the desired expression for "a".

Solved.

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