Question 967673
First Stage:


{{{(25x+0*y)/22=percentOrangeEssense}}} of the mixture result.
Making the variable simpler on the right,
{{{(25x)/22=p}}}


You do not yet have information for value of x nor y.  NOR for p.  You could still work with this using what variables and values you have.


Stage Two:


Add 3 liters of water, and find the new percent of the essense.


{{{22p/(22+3)}}}
{{{22(25x/22)/(22+3)}}}
{{{25x/(25)}}}
{{{x}}}


Give any improved problem description if you have it, because the solution here might be a misunderstanding of what your actual problem is.