ISEE Word Problems Question 266: Answer and Explanation
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Question: 266
15. What is the solution set to the inequality –4 ≤ 3x – 1 ≤ 8 ?
- A. –1 ≤ x, x > 3
- B. 1 ≤ x, x ≥ 3
- C. –1 ≤ x ≤ 3
- D. 1 ≤ x ≤ 3
Correct Answer: C
Explanation:
C
When solving an equation with two inequality signs, perform the same operation to the two sides and the middle. Start by adding 1 to both sides and the middle: –3 ≤ 3x ≤ 9. Divide both sides by 3: –1 ≤ x ≤ 3.