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Which of the following values is not a solution of the inequality \(3x-2<13\)?

Answer and explanation

Correct answer: \(x=5\)

Solving \(3x-2<13\) gives \(3x<15\), hence \(x<5\). Therefore, \(x=5\) is not a solution because substitution gives \(3(5)-2=13\), and \(13<13\) is false. In contrast, \(x=4\) satisfies the inequality since \(10<13\). Exam tip: In strict inequalities such as '<' or '>', the boundary value is not included.

Related tags

Linear InequalitiesInequality SolutionsClass 11 MathematicsAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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