Another find the equation of this line, please help me!

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?

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

4+(2+x) can you me solve this problem