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A student concluded \(x\geq-5\) from the inequality \(-2x\geq10\). What is the correct solution?

Answer and explanation

Correct answer: \(x\leq-5\)

Dividing both sides of \(-2x\geq10\) by \(-2\) reverses the inequality sign because the divisor is negative: \(x\leq-5\). The value \(-5\) is included because the original relation was \(\geq\). Option B repeats the mistake of not reversing the sign. Exam tip: Always reverse an inequality sign when multiplying or dividing by a negative number.

Related tags

Linear InequalitiesOne Variable InequalitiesNegative CoefficientError DetectionAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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