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  • Solving Equations (Key Stage 1 - 4)
  • A number added to 9 is 21. Which of the following equatio...
Multiple choice

A number added to 9 is 21. Which of the following equations represents the given statement?

  1. x + 21 = 9

  2. x +9 = - 21

  3. x + 9 = 21

  4. 21 = x – 9

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let the number be x. x + 9 = 21

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