Answer:
Given information :

Find f(x) - g(x)

Distribute the negative to the second polynomial

optional : rearrange the terms

Combine like terms and find f(x) - g(x)
Answer:
350
Step-by-step explanation:
771=x+x+71 (x+71 is kids,x is adults)
2x=700
x=350
It is 408.16. because that is what you get when you subtract them.
Considering n the total of votes:
n = 5/8 * n + 5/9 * (1 - 5/8) * n + 48
Then
n (1 - 5/8 - 5/9*3/8) = 48
n (1/6) = 48
n = 288
=> blue votes = 5/8 * 288 = 180