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How many positive integer values of \(x\) satisfy the inequality \(3x+4<19\)?

Answer and explanation

Correct answer: 4

From \(3x+4<19\), we get \(3x<15\), so \(x<5\). Since positive integers start at 1, the possible values are \(x=1,2,3,4\), giving 4 solutions. The distractor 5 is incorrect because \(x=5\) gives \(3(5)+4=19\), which does not satisfy the strict inequality \(<19\). Exam tip: the boundary value is excluded in a strict inequality.

Related tags

Positive IntegersLinear InequalitiesCounting SolutionsAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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