Get a Clue! (at the AMS Student Conference)

Hi AMS Student Conference Attendees,
Hope you’re having a great and productive day! Here’s your clue for the contest:
__ + __ + __ + __ +  __  + __ + __  + __  =  final answer
A      U      S       T       I        N      T       X
1.  Determine how many times each of the letters in ‘AUSTINTX’ appears in the puzzle.  For example, if the letter ‘A’ appears ten (10) times in the puzzle, then write the number 10 above the A. If a letter does not appear in the puzzle then insert a value of -1 above the letter. For example, if the letter ‘A’ appears zero (0) times in the puzzle, then write the number -1 above the A.
2.  Then, solve the equation to arrive at the final answer.
Submit your final answer, along with all required information, to:
https://catalyst.uw.edu/webq/survey/swright/119394
Your answer must be submitted by 9:00am(CST) on Sunday, 22 January 2012.