Country carpets charge $22 per square yard for carpeting and an additional installation fee of $100. City carpets charges $25 fee per square yard for the same carpeting and an additional installation fee of $70

X is the number of carpeting done

22x+100=25x+70

22x=25x+70-100

22x=25x-30

22x-25x=-30

-3x=-30

x=-30/-3

x=10

A person would have to do the carpeting 10 times in order to pay the same price for both companies (equal).

I dont know if that's your question but this is what is usually asked when giving a problem of that kind.