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AlgebraMCQ · 1 mark

In a video game, Ravi’s final score is represented by 16 + 7k + 9 – 2k + 11 – 6 points. Simplify the expression.

  1. 30 + 5k
  2. 30 + 9k
  3. 36 + 5k
  4. 36 + 9k
Need a hint?

Group the terms containing k first, then group the whole numbers.

Worked answer

  1. Combine the variable terms: 7k – 2k = 5k.
  2. Combine the constants: 16 + 9 + 11 – 6 = 30.
  3. Write the simplified expression: 30 + 5k.
Answer: 30 + 5k points

The mistake this question tests

Habit

Collecting like terms in algebra

Some pupils add 7k and 2k instead of subtracting, or forget to subtract 6 from the constants.

How to fix it at home →

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