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What is the solution set of (9x-4\le 3(3x-1)-2)?

Answer and explanation

Correct answer: \(\varnothing\)

Simplify the right-hand side: \(3(3x-1)-2=9x-5\). The inequality becomes \(9x-4\le 9x-5\). Subtracting \(9x\) from both sides gives \(-4\le-5\), which is false. Hence, the inequality is not true for any real value of \(x\), so the solution set is \(\varnothing\). Options such as \(x\le1\) or \(x\ge1\) would arise only if an \(x\)-term remained after simplification. Exam tip: when variable terms cancel, check whether the remaining numerical statement is true or false.

Related tags

Linear InequalitiesOne VariableEmpty SetAlgebraic SimplificationClass 11Algebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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