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If \(x\in\mathbb{Z}\) and \(3x+2\geq 17\), what is the least possible value of \(x\)?

Answer and explanation

Correct answer: 5

From \(3x+2\geq 17\), we get \(3x\geq 15\), and hence \(x\geq 5\). Since \(x\) is an integer, the least possible value is 5. Option 4 is incorrect because \(3(4)+2=14<17\). Exam tip: dividing an inequality by a positive number does not reverse its sign.

Related tags

Least-IntegerInteger-SolutionLinear-InequalityInequality-SolvingAlgebraic Solution Of Linear Inequalities In One VariableLinear InequalitiesMathematicsClass 11 Mcq

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