issb mathematics MCQ #250

If 3(x+2)=21, x is:

issb mathematics MCQ #250

  1. Question 1

    Q1. If 3(x+2)=21, x is:

    • A) 3
    • B) 5
    • C) 7
    • D) 9

    Answer: 5

    Explanation: Divide by 3 to get x+2=7. Subtract 2 to get x=5. Work each step carefully; ISSB math rewards accuracy under time pressure.