Help me this is due worth 10 points

Find the difference (8ab+a+2) - (3ab+6)

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

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?