Answer:
Karen has only 2 checkers left
Explanation:
Jasper has 7 checkers than Karen
Jasper has 9 checkers
The equation can be written as
7 + k = 9
This means that 7 plus Karen checkers equal 9 which is jasper checkers
It can also be written as
9 - 7 = k
k = 2
Therefore Karen has only 2 checkers left