1. Review Simplify Expressions Distributing and Combining Like Terms

2. Like Terms – same variable with same exponent 6x + 2x = When combining like terms, only use the coefficients. 6x + 2x =8x 4x + 3y – 2x + 4y = Simplify 2x + 7y Simplify Never, NEVER, combine x’s and y’s or constant terms with variable terms. 2x + 7y ≠ 9xy and 3a + 6 ≠ 9a. Combining Like Terms:

3. We are going to go around to each student and have them answer the problem. EVERYONE DO THE WORK AT YOUR DESK AS WELL.

5. 6y + 2x + 4y + 8

6. 2x + 10y + 8

7. 7n + 6y + 3 – 2n + 4

8. 5n + 6y + 7

9. 3r + 7y -2r + y

10. r + 8y

11. 4n + 9 + 6m - n - 2m + 2

12. 4m + 3n + 11

13. 2x + 7 + 5x - 4 - x

14. 6x + 3

15. 5 + 7x + 2x – 3 + 6

16. 9x + 8

17. x + y + 4x – 3x + 2y + 3y

18. 2x +6y

19. 3x² + 5x +17 + 6x + 20

20. 11x+ 3x² +37

21. 4x + x² +12 – 4 +2x

22. x² +6x + 8

23. 12y + 12x +12 – 6x + 12

24. 12y + 6x + 24

25. 12y + 4 +x –7y + 8 +8x

26. 5y + 9x +12

27. 5x + x²+ 2x + 5 – 4 - x²

28. 7x + 1

29. 5x² + 8x + 7x²+6x

30. 12x² +14x

31. 12x + 6 –8x –4x –3 + 12

32. 15

33. 5x + 4 –3x +5 +2x - 9

34. 4x

35. 4x +2y + 8 – 3 - y - x

36. 3x + y + 5

37. 4(2m + 3) – 5

38. 8m + 12 – 5 8m + 7

39. 3(4c + 2n) + 4 – 2c

40. 12c + 6n + 4 – 2c 10c + 6n + 4

41. 5(x + 2) + x + 7

42. 5x + 10 + x + 7 6x + 17

43. x(4 + 7) + 4x + y

44. 4x + 7x + 4x + y 15x + y

45. x + 2(3x + 4y) + 3

46. x + 6x + 8y + 3 7x + 8y + 3

47. 4x + 5 +7x + 2y +2 - y

48. 11x + y + 7

49. 2y + 2x + 8 – 6 + x – 2y

50. 3x + 2

51. 4x + 6y + 6 + 7x + y

52. 11x + 7y + 6

53. 3x² + 4x –2x² -3x +2x

54. x² + 3x

55. 8x + 4 – 4 – 4x +x

56. 5x

57. y + 5x + 6y + 9 - 6

58. 5x + 7y + 3

59. x² +3 +2x² + 4 -7

60. 3x²

61. 5y + 3 + 7x² -2x - x² + y

62. 6x² + 6y -2x+3