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What is the solution of (1.5x+2.4<0.6x-3)?

Answer and explanation

Correct answer: \(x<-6\)

Subtracting \(0.6x\) and \(2.4\) from both sides gives \(0.9x<-5.4\). Since \(0.9\) is positive, dividing both sides by \(0.9\) does not reverse the inequality sign, so \(x<-6\). The option \(x\le -6\) is incorrect because the original inequality is strict and does not include equality. Exam tip: Reverse an inequality sign only when multiplying or dividing by a negative number.

Related tags

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

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