Question 37091
Assign n = # of student tickets and m = # of general admin tickets. You have to then separate the equation into a number-of-tickets equation, 3n = m, and a value-of-tickets equation, 2n + 5m = 1700.  If you substitute 3n in for m in the value equation, you get 17n = 1700, and then n = 100.  You can find m = 300 and you're all done.