Answer:
1000
Explanation:
Okay so let's put T as TOTAL tickets
1800+1500+3T
To make it easier lets do this
3300+3T
total earnings is 5T+1300
So now the problem is this
3300+3T=5T+1300
Lets take away 1300 from both sides
3300-1300 = 2000
1300-1300 = 0
2000+3T=5T
Lets now take 3T from both sides
3T = 3T = 0
5T - 3T = 2T
now we have
2000=2T
Divide both sides by 2
1000=T
The team must sell 1000 tickets to break even