Gabby bought a bag of s sour candies. She ate 10 of the candies. Write an expression that shows how many sour candies Gabby has now.

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?