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.