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Solve the inequality ((3x-2)/4≥4).

Answer and explanation

Correct answer: x≥6

The governing concept is maintaining an inequality while performing equivalent operations. Start with (3x−2)/4≥4. Since 4 is positive, multiply both sides by 4 without reversing the sign: 3x−2≥16. Add 2 to both sides to get 3x≥18. Divide by positive 3, again keeping the sign unchanged, and obtain x≥6. Thus option A is correct. The equality is retained throughout, so 6 is included. Options C and D incorrectly replace ≥ by a strict sign, while B reverses the direction without any negative multiplication or division. Substitution verifies the boundary: when x=6, the left side is (18−2)/4=4, satisfying the original inequality.

Related tags

Linear InequalitiesAlgebraic SolutionPositive MultiplicationAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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