Solve the compound inequality and find the set of all .
Answer
The correct answer is — Divide each part by (positive), keeping inequality signs:
Step-by-step solution
- Subtract from each part:
- Divide each part by (positive), keeping inequality signs:
Common mistake: Using instead of in the left part or mis‑ordering the bounds
Concept tested: Solving compound inequalities
Published · How this solution was prepared and checked
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