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An HVAC technician is configuring the safety control limits for a smart building's environmental chamber. To ensure system stability, the temperature calibration variable, xx, must simultaneously satisfy two safety constraints: the primary sensor constraint 2(3x+1)≤20{}2(3x+1) \leq 20 and the backup sensor constraint 4(x−1)<2{}4(x-1) < 2.

By solving both inequalities and finding their intersection, the technician determines the safe operational range for xx.

In interval notation, the overlapping safe ope

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Updated 2026-09-18

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