Answer:
-3
Step-by-step explanation:
since the 9 in negative you subtract 9 by 6 and you get 3 then you put the negative sign in front of the 3 making it -3
X=-9
There is no slope in either equation. Therefore, x=-11 and x=-9 will be two vertical and parallel lines at (-11,0) and (-9,0)
I think the answer to that is A