22 is the number of digs you have so far this season
x will be the number of digs you get in the remaining games.
So, x+22 will be the number of digs you get for the season.
You want this number to be greater than 31 to break your previous record.
So, x+22 > 31is the equation to solve to determine the number of digs for the remainder of the season
x > 31-22. or x > 9.