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What is the solution of the inequality 6 − 2x ≥ 0?

Answer and explanation

Correct answer: x ≤ 3

The governing concept is isolating the variable while reversing the sign when dividing by a negative coefficient. Starting with 6 − 2x ≥ 0, subtract 6 from both sides to obtain −2x ≥ −6. Dividing by −2 reverses ≥ to ≤, so x ≤ 3. The equality is included because the original relation is ≥. A boundary check gives 6 − 2(3) = 0, confirming that x = 3 belongs to the solution set. Testing x = 2 gives 2 ≥ 0, which is true, while x = 4 gives −2 ≥ 0, which is false. Option B results from forgetting the sign reversal, and options C and D incorrectly remove or reverse the endpoint and direction. Therefore option A correctly represents all solutions.

Related tags

Linear InequalitiesSign ReversalEndpoint InclusionAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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