A total of
351
tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was two times the number of adult tickets sold. How many adult tickets were sold?

Question

A total of 
351
 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was two times the number of adult tickets sold. How many adult tickets were sold?

anonymous · Answer

Well, to start you need to write the equation. Since the number of tickets sold is equal to the number of student tickets plus the number of adult tickets, let's write that as an equation. Let adult tickets = a Let student tickets = s
a + s = 351
Now we also know that the number of student tickets is equal to two times the number of adult tickets, so we can write that as an equation as well.
s = 2a
Now, we can simply use substitution to solve. Have you got it from there or would you like more help?