Answer:
i think the answer might be E.
JL is equal to 27
It's just 18+9
we have the following system of equations

we know that
The intersection of both graphs is the solution of the system of equations
using a graph tool
see the attached figure
the solution is the point 
therefore
<u>the answer is</u>
the solution of the system of equations is the point 
3/2y+6 I think is the answer