Simple Equations

Multiple Choice Questions

63. The shifting of a number from one side of an equation to other is called

• (A) Transposition
• (B) Distributivity
• (C) Commutativity
• (D) Associativity

62. A term of an equation can be transposed to the other side by changing  

• (A) Its value
• (B) Its sign
• (C) Power of the variable
• (D) None of these

61. Which of the following is not allowed in a given equation?

• (A) Adding the same number to both sides of the equation.
• (B) Subtracting the same number from both sides of the equation.
• (C) Multiplying both sides of the equation by the same non-zero number.
• (D) Dividing both sides of the equation by the same number.

60. Shifting one term from one side of an equation to another side with a change of sign is known as

• (A) commutativity
• (B) transposition
• (C) distributivity
• (D) associativity

59. Any value of the variable which makes both sides of an equation equal, is known as 

• (A) Variable
• (B) Solution
• (C) Power
• (D) None of these

58. If a and b are positive integers, then the solution of the equation ax = b will always be a

• (A) positive number
• (B) negative number
• (C) 1
• (D) 0

57. The solution of the equation ax + b = 0 is

• (A) x = a/b
• (B) x = b/a
• (C) x = −a/b
• (D) x = −b/a

56. If 7x + 4 = 25, then x is equal to

• (A) 29/7
• (B) 100/7
• (C) 2
• (D) 3

55. The solution of the equation 3x + 7 = – 20 is

• (A) 17/7
• (B) – 9
• (C) 9
• (D) 13/3

54. x exceeds 3 by 7, can be represented as

• (A) x + 3 = 2
• (B) x + 7 = 3
• (C) x – 3 = 7
• (D) x – 7 = 3

53. A number x divided by 7 gives 2 can be written as

• (A) x/7 = 2
• (B) x + 1/7 = 2
• (C) x/2 = 7
• (D) None of these

52. One fourth of a number is 20 less than the number itself. Mathematical version of this is

• (A) (x/4) – x = 20
• (B) x – (x/4) = 20
• (C) (x/4) = 20 – x
• (D) (x/4) = x – 20

51. If 9 is added to a number, it becomes 25. This statement in the form of an equation is

• (A) x + 9 = 25
• (B) x – 9 = 25
• (C) 9x = 25
• (D) x/9 = 25

50. The statement adding 15 to 4 times x is 39, when converted to an equation becomes

• (A) 4x + 15 = 39
• (B) 15x + 4 = 39
• (C) 4x – 15 = 39 
• (D) 4x + 15 + 39 = 0

49. Which of the following numbers satisfy the equation –6 + x = –12?

• (A) 2
• (B) 6
• (C) – 6
• (D) – 2