Short Answer

Industrial System Data Validation

In an industrial control system, a voltage decrease is recorded as the integer -9. During a diagnostic check, the system outputs the validation expression −∣−9∣-|-9|. State the simplified numerical value of the expression −∣−9∣-|-9| and identify the mathematical symbol (<, >, or =) that correctly represents the relationship between the original record of -9 and this diagnostic result.

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Updated 2026-09-18

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