If is an integer such that , what is the number of integer values that can take?
Answer and explanation
Correct answer: C. 6
- Step 1: Subtract 1 from each part: . Step 2. Divide by 2: . Step 3. The integers in this range are , which is 6 values. Answer: 6. Why not the others: '5' misses one of the values; '4' counts only the positive integers; '7' wrongly includes .
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