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What is the solution of the inequality (x − 3)/5 > 4?

Answer and explanation

Correct answer: x > 23

The governing concept is clearing a positive denominator without changing the inequality direction. Begin with (x − 3)/5 > 4. Since 5 is positive, multiply both sides by 5 safely: x − 3 > 20. Add 3 to both sides to obtain x > 23. Thus option A is correct. The inequality remains strict because the original symbol is >, so x = 23 is not included; substituting it gives 20/5 = 4, not a value greater than 4. Option B reverses the direction without justification, while C and D incorrectly include equality or give the opposite region. If x = 24, the left side is 21/5 = 4.2, confirming that values above 23 satisfy the inequality.

Related tags

Linear InequalitiesFractionPositive DenominatorStrict BoundaryAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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