How is it going to tell me the answer

I dont know man you gotta ask a question

Please reply if you meant check bag fee instead of checked bad fee but if it’s checked bag fee then check what I am doing below
So if it is going to be two simultaneous equations
$29+4(x)=y
$15+11(x)=y

But I
Am getting a negative answer so you can tell the source of this question to reframe the question