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What is the solution of the inequality \(9-3x\geq 2x-16\)?

Answer and explanation

Correct answer: \(x\leq 5\)

Rearranging the inequality gives \(9-3x\geq 2x-16\Rightarrow 25\geq 5x\). Dividing both sides by the positive number 5 yields \(x\leq 5\), so option A is correct. The inequality sign would reverse only if we divided or multiplied by a negative number; that does not happen here. Exam tip: after collecting the variable terms, always check the sign of the number used to divide.

Related tags

Linear InequalitiesSolving InequalitiesInequality SignsOne Variable InequalitiesAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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