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If (r<s), what is the correct relation between (7-2r) and (7-2s)?

Answer and explanation

Correct answer: (7-2r>7-2s)

Multiplying (r<s) by (-2) reverses the sign to (-2r>-2s), and adding (7) keeps the direction. Check the sign at every step in mixed transformations.

Related tags

Linear-InequalitiesPropertiesSign-ChangeIntroduction To InequalitiesLinear InequalitiesMathematicsClass 11 Mcq

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