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What do we get after solving 6 - 5x ≤ 16?

Answer and explanation

Correct answer: x ≥ -2

The governing concept is solving a linear inequality while reversing the inequality sign whenever both sides are divided or multiplied by a negative number. Begin with 6 - 5x ≤ 16. Subtracting 6 from both sides gives -5x ≤ 10. Dividing both sides by -5 reverses the sign because -5 is negative, so the result is x ≥ -2. Hence option A is correct. The endpoint is included because the original inequality contains ≤. Option B is the common error of failing to reverse the sign. Options C and D are also incorrect because they either use a strict inequality or point in the wrong direction. Substitution confirms the boundary: x = -2 gives 6 + 10 = 16, which satisfies the inequality.

Related tags

Linear InequalitySign ReversalNegative CoefficientAlgebraic SolutionAlgebraic Solution Of Linear Inequalities In One VariableLinear InequalitiesMathematicsClass 11 Mcq

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