Question

A theater charges $5 for student tickets and $7 for adults tickets. They sold 75 tickets for a total of $425. Which set of equations can be used to determine x, the number of students tickets sold, and y, the number of adult tickets sold?

Answer 1

They sold 75 tickets total, so one of your equations will be x+y=75.

The other equation has to do with the price.
5x+7y=425.


Your two equations are:
x+y=75
5x+7y=425

Answer 2

1.   5x+7y=$425
2.   (5*x)+(7*y)= $425