Answer:
68 tickets
Explanation:
1000 = 25x - 700
x is the number of tickets
You want to raise 1000 dollars, which will equal the number of tickets times the price for each ticket minus the 700 dollars spent renting the hall.
Add 700 to both sides and then divide both sides by 25 to isolate x.
1700 = 25x
x = 68 tickets