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The solution of (2−5x)/3 ≥ 4x−7 is:

Answer and explanation

Correct answer: x ≤ 23/17

The governing rule is to clear a positive denominator before collecting the variable terms. Multiplying both sides by 3 preserves the inequality because 3>0: 2−5x ≥ 12x−21. Add 21 to both sides to obtain 23−5x ≥ 12x, then add 5x to get 23 ≥ 17x. Dividing by the positive coefficient 17 yields x ≤ 23/17. Hence option A is correct. Option B reverses the direction without a negative divisor, option C uses a strict sign although equality is allowed, and option D changes the sign of the boundary incorrectly. Checking x=0 satisfies the original inequality, and 0≤23/17, while a value larger than 23/17 fails, confirming the result.

Related tags

Linear InequalityFractionInequality DirectionClass 11Algebraic Solution Of Linear Inequalities In One VariableLinear InequalitiesMathematicsClass 11 Mcq

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