Short Answer

Pneumatic Lift Safety Tolerance

A safety technician is evaluating the pressure tolerance xx for a pneumatic lift. The lift must satisfy two safety conditions simultaneously: 3(2x+5)≤18{}3(2x+5) \leq 18 and 2(x−7)<−6{}2(x-7) < -6. These requirements simplify to x≤12x \leq \frac{1}{2} and x<4x < 4, respectively. According to the facility's safety manual, the final combined safety range must be recorded in interval notation. What is the resulting interval notation for xx?

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Updated 2026-09-18

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