Question detail
answer-form check: simplify 7x + 9x by collecting like terms.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Solving equations and inequalities
Question
- A. 16x
- B. 21
- C. 11
- D. 32
Answer
The correct answer is 16x.
Explanation
Use the worked steps as the check: the question intent fixes the answer as 16x, and the final-answer line confirms 16x.
Common mistake
Iteration common mistake 1
Writing a final answer without showing the method that justifies it. This can weaken answers for: [Higher only] Use suffix notation in recursive formulae where required..
Show the method first, then give the final answer in the required form. Apply this directly to Iteration.
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