Advanced MathEasyBooks left on a shelf
Advanced Math practice question
A shelf holds 9y books, and 4y of them are removed. Which expression gives the number of books left?
- A. 5yCorrect
- B. 13y
- C. 9y − 4
- D. 4y − 9y
Answer: A. 5y
9y − 4y = 5y.
Why the other answers are wrong
- B. 13y
- Adds instead of subtracting.
- C. 9y − 4
- Subtracts 4, not 4y.
- D. 4y − 9y
- Subtracts in the wrong order and does not simplify.
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