Simplest method: elimination.
Subtract the first equation from the second one.
(2a+b=-33)-(a+b=-10) gets you to a=-23.
Now plug that in for a and solve.
-23 +b=-10
b=13
I believe your answer should be C > -5/4
8546/2 = 4273
Hope this helps!
It is undefined because you can’t have 0 as a denominater
