43. 44. The difference of twice a number and

41. The sum of 2 and six times a number is 5. What is the number?

42. The sum of 7 and eight times a number is 3. What is the number?

43. The difference of four times a number and 9 is -9. What is the number?

45. 3 less than twice a number is 25. What is the number?

44. The difference of twice a number and 3 is -7. What is the number?

46. 1 less than five times a number is 19. What is the number?

47. 9 less than six times a number is -33. What is the number?

48. 8 less than three times a number is -11. What is the number?

49. 11 more than twice a number is -3. What is the number?

50. 7 more than twice a number is 9. What is the number?

51. 10 more than seven times a number is -18. What is the number?

52. 3 less than eight times a number is -43. What is the number?

53. Twice the sum of a number and 11 is -14. What is the number?

54. Twice the sum of a number and 7 is 16. What is the number?

55. Twice the sum of 10 and a number is 20. What is the number?

56. Twice the sum of 9 and a number is 18. What is the number?

57. Five times the difference of a number and -2 is -9. What is the number?

58. Five times the difference of a number and 5 is 12. What is the number?

59. Three times the difference of a number and 8 is -15. What is the number?

60. Six times the difference of a number and -6 is 30. What is the number?

61. 5 less than three times a number is 9 more than the number. What is the number?

62. Twice the difference of a number and -12 is 21 less than five times the number. What is the number?

63. The sum of -25 and a number is three

64. 16 more than six times a number is twice

times the difference of 7 and the number.

the sum of the number and -18. What is

What is the number?

the number?

65. Two-thirds of the sum of a number and 3 is 12. What is the number?

66. One-half of a number increased by 7 is 17. What is the number?

67. 1 more than twice a number is 4 less than 68. 3 times a number decreased by 12 is 5 more

the same number. What is the number?

than twice the number. What is the number?

69. 18 less than the opposite of a number is 2 less than 7 times the number. What is the number?

70. The product of 4 and a number is 16 less than 8 times the number. What is the number?

Problem Solving

page 2.4 - 12

71. The product of the opposite of a number 72. Twice a number decreased by 2 is 5 more

and 5 is two-thirds of the sum of -6 times

than one-half of the number. What is the

number and 12. What is the number?

number?

73. Four times a number increased by nine is seven less than twice the number. What is the number?

74. Three times the sum of a number and four is two more than the number. What is the number?

75. 8 more than 3 times a number is one-half 76. A number decreased by 25 is 6 times the

the difference of this number and 8.

opposite of the number. What is the

What is the number?

number?

77. The sum of 82 and a number is the product 78. 17 less than twice a number is 55 more than

of 4 and 1 more than the number. What is

the opposite of the number. What is the

the number?

number?

79. 9 times the difference of a number and 2 is 80. 9 decreased by the opposite of twice a

the number increased by 46. What is the

number is 8 more than the number. What is

number?

the number?

81. 22 less than the sum of a number and 16 82. One-fifth of a number increased by 10 is

is 3 times the number. What is the

twice the number decreased by 8. What is

number?

number?

Think Outside the Box. Write the English form of each equation. 83. x ? 9 = 2x

1

85. -x + 6 = 2 x ? 3

84. 2x + 5 = 3x ? 2

1

86. 2(x + 5) = 2 (x ? 3)

Problem Solving

page 2.4 - 13

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