2. Knock Out!!!!! Your are in teams of four. The number on your desk corresponds to the number problem you are responsible for. When all four members of your team have answered their problems, the team is to add all of the answers to come up with one answer. When you get that answer write it on the white erase board and hold it up! The first team to hold up the correct answer will receive three strikes to give to other teams. You may give them all to one team or split them up. When your team is given five strikes you may no longer win. However, you may still play to knock out other teams, so you can get your revenge! The last team standing wins.

3. Round One 1)3 + y = 9 2)x – 6 = 14 3)7x = 49 4)2x + 2 = 12

4. Answers 1)3 + y = 9 3) -3 = - 3 y = 6 2) x – 6 = 14 4) 2x + 2 = 12 + 6 = +6 - 2 = -2 x = 20 x = 5 38

5. Round Two 1)2x - 4 = 10 2)7 + x = 20 3)X – 11 = 30 4)-5x = 35

6. Answers 1)2x – 4 = 103) x – 11 = 30 + 4 = +4 + 11 = +11 x = 41 x = 7 2) 7 + x = 204) -7 = -7 x = 13 x = -7 54

7. Round Three

8. Answers 1) y = 24 2) x = 29 3) z = 8 4) a = -2 59

9. Round Four 1)3X – 11 = 2x + 50 2)20 – 4x = 5x – 7 3)-4x – 2 = 2x + 22 4)6x + 13 = 5x – 20

10. Answers 1)x – 11 = 503) -6x – 2 = 22 +11 = + 11 + 2 = +22 x = 61 x = -4 2) 4) x + 13 = -20 -13 = -13 x = 3 x = -33 27

11. Round Five 1)3(x + 17) = 90 2)2(5 – x) = 20 3)-90 = 3(11x + 3) 4)2(3x + 5) = 52

12. Answers 1)x + 17 = 303) -17 = - 17 x = 13 x = -3 2) 5 – x = 104) 3x +5 = 26 -5 = - 5 -5 = - 5 -x = 5 x = -5 x = 7 12

13. Round Six

14. Answers -4.72

15. Round Seven 1)-2(3x + 4) = -38 2)-(x – 2) = 8 3)-2(x+8) = -24 4)-3(x – 5) = -60

16. Answers 1) 3) x + 8 = 12 -8 = -8 x = 5 x = 4 2) –x + 2 = 84) x – 5 = 20 - 2 = -2 + 5 = +5 -x = 6 x = 25 x = -6 28

17. Round Eight

18. Answers 1)25 2)7 3)-37 4)1 -4

19. Round NINE 1)3(x + 5) – 2x = 25 2)5 + 2x = 3(x – 4) – 4 3)19 + 3x = 6x + 7 – 2x 4)7x – 21 – 2x = 1 + 4(x – 2)

20. Answers 1)5 + x = 153) 19 = x +7 -5 = -5 -7 = -7 x = 10 12 = x 2) 17 = x – 44) x – 13 = 1 +4 = +4 + 13 = +13 21 = x x = 14 57

21. Round TEN 1)x + 7 = 10 2) x – 3 = 12 3)x + 8 = 15 4)x – 2 = 27

22. Answers 1 ) x + 7 = 103) x + 8 = 15 - 7 = -7-8 = -8 x = 3 x = 7 2) x - 3 = 124 ) x – 2 = 27 +3 = + 3+ 2 = +2 x = 15 x = 29 54