For each of the following games, determine if a saddle point exists. If
a saddle point does exist, determine the values of x for which the game
has a saddle point.

⎡ x , −3 ⎤
⎣ -1 , 2 ⎦


⎡ x+6 , x−2 ⎤
⎣ x-3 , x+1 ⎦