The student tickets cost
less than the general admission tickets.
The total amount of money collected for student tickets was
The general admission tickets
Let
be the number of tickets sold.
Let
be the cost of the general admission tickets.
Since,
number of tickets at
cost is

Thus,
number of tickets at
cost is

Rewrite the equation.
\
Simplify,
\
The number of each ticket sold is 
Substitute
in 

General admission is
\ \