Question

A total of 643 tickets were sold for the school play. They were either adult tickets or student tickets. There were 57 fewer student tickets sold than adult tickets. How many adult tickets were sold?

Answer 1

350 adult tickets

Explanation:

If x is the number of adult tickets sold, then x-57 is the number of student tickets sold (57 fewer). The total number sold is ...

x +(x -57) = 643

2x = 700 . . . . . . . . collect terms, add 57

x = 350 . . . . . . . divide by 2

There were 350 adult tickets sold.