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What is the solution of the inequality \(10<3x+1\)?

Answer and explanation

Correct answer: \(x>3\)

Subtracting 1 from both sides gives \(9<3x\). Dividing by 3, which is positive, does not reverse the inequality sign, so we obtain \(3<x\), equivalent to \(x>3\). Therefore, option A is correct. Exam tip: the inequality sign changes direction only when multiplying or dividing by a negative number, not by a positive number.

Related tags

Linear InequalitiesOne Variable InequalitiesAlgebraic SolutionClass 11 MathematicsAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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