Question 715438
As a guess, in case you are trying to express:  {{{2x/(x-3) + 1/x =4}}}, then you should multiply left and right sides of the equation by x(x-3).  That step will give you

{{{2x^2+x-3=4x(x-3)}}}
{{{2x^2+x-3=3x^2-12x}}}
{{{x-3=x^2-12x}}}
{{{0=x^2-13x+3}}}


Not factorable so need solution to quadratic formula.


{{{x=(13+sqrt(169-4*3))/2}}}  or  {{{x=(13-sqrt(169-4*3))/2}}}