Polynomial division yields

As

, you have the remainder term approaching

, so the horizontal asymptote is the line

.
Maybe i have that you wanted
We can represent the situation like that:
Y=-15 and x=-20
Then When y=12 x=?
We make x(The unknown) *-15=12*(-20)
We have an simple équation to solve
Thus x=(12*(-20))/-15
X=16
No idea sorry! If I knew I would tell you
Answer:
16
Step-by-step explanation:
180-164=16 do the answer is 16