There are 72 tent sites at the campground. 35 of the sites can have 2 tents. the rest can have just one tent. how many tents could be at the campground ?

35 sites at possible 2 tents = 70
Total 72 sites - the 35 sites = 37 sites remaining
The remaining 37 can have 1 tent = 37
Add possible 70 to 37 = 107
There is a possible 107 tents that could be at campground.

(1/x + 1)^2 + 6 (1/x + 1) +5