3 In a parallelogram, the diagonals (the lines inside from corner to corner) bisect each other. That means the two halves of the diagonal are equal to each other. So -9-6x=x-30 -9-6x+6x=x-30+6x -9=7x-30 21=7x x=3
There will be 4 games in the first round because 8 members divided by 2 players per games equals 4 games. I hope that was what you were asking? If not let me know