2. Warm Up Write an algebraic expression: 1) Seven less than x 2) The product of 7 and y 3) The quotient of 15 and x 4) Ten taken from the product of six and n. 5) Name the three main properties of numbers and give an example of each.

3. Combining Like Terms

4. Terms  Are separated by a sign (- or +)

5. How many terms are in the example?

6. Coefficient  it is the number next to the variable. You must have a variable to have a coefficient.

7. Any variable without a number in front of it has an understood coefficient of 1.

8. Constant  a number without a variable

9. Combine Like Terms (put the same variables together!)

10. That is the answer…don’t do anything else!

13. 6y + 2x + 4y + 8

14. 2x + 10y + 8

15. 7n + 6y + 3 – 2n + 4

16. 5n + 6y + 7

17. 3r + 7y -2r + y

18. r + 8y

19. 4n + 9 + 6m - n - 2m + 2

20. 4m + 3n + 11

21. 2x + 7 + 5x - 4 - x

22. 6x + 3

23. 5 + 7x + 2x – 3 + 6

24. 9x + 8

25. x + y + 4x – 3x + 2y + 3y

26. 2x +6y

27. 3x² + 5x +17 + 6x + 20

28. 11x+ 3x² +37

29. 4x + x² +12 – 4 +2x

30. x² +6x + 8

31. 12y + 12x +12 – 6x + 12

32. 12y + 6x + 24

33. 12y + 4 +x –7y + 8 +8x

34. 5y + 9x +12

35. 5x + x²+ 2x + 5 – 4 - x²

36. 7x + 1

37. 5x² + 8x + 7x²+6x

38. 12x² +14x

39. 12x + 6 –8x –4x –3 + 12

40. 15

41. 5x + 4 –3x +5 +2x - 9

42. 4x

43. 4x +2y + 8 – 3 - y - x

44. 3x + y + 5

45. 4(2m + 3) – 5

46. 8m + 12 – 5 8m + 7

47. 3(4c + 2n) + 4 – 2c

48. 12c + 6n + 4 – 2c 10c + 6n + 4

49. 5(x + 2) + x + 7

50. 5x + 10 + x + 7 6x + 17

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

52. 4x + 7x + 4x + y 15x + y

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

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

55. 4x + 5 +7x + 2y +2 - y

56. 11x + y + 7

57. 2y + 2x + 8 – 6 + x – 2y

58. 3x + 2

59. 4x + 6y + 6 + 7x + y

60. 11x + 7y + 6

61. 3x² + 4x –2x² -3x +2x

62. x² + 3x

63. 8x + 4 – 4 – 4x +x

64. 5x

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

66. 5x + 7y + 3

67. x² +3 +2x² + 4 -7

68. 3x²

69. 5y + 3 + 7x² -2x - x² + y

70. 6x² + 6y -2x+3