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If \(x\) is an integer and \(2x+1<9\), what is the greatest possible value of \(x\)?

Answer and explanation

Correct answer: 3

Subtracting 1 from \(2x+1<9\) gives \(2x<8\), and dividing by the positive number 2 gives \(x<4\). Since \(x\) is an integer, the greatest integer less than 4 is 3. Option 4 is incorrect because \(2(4)+1=9\), which is not less than 9. Exam tip: In a strict inequality \(<\), the boundary value is not included.

Related tags

Linear InequalitiesInteger SolutionsGreatest IntegerAlgebraic InequalitiesAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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