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Which value is not a solution of 2x − 7 > 5?

Answer and explanation

Correct answer: x = 6

Solve the strict linear inequality step by step. Starting with 2x−7>5, add 7 to both sides to obtain 2x>12. Dividing by the positive number 2 preserves the direction, giving x>6. Thus x=6 is the boundary value, but it is excluded because the original sign is > rather than ≥. Substitution confirms this: 2(6)−7=5, and 5>5 is false. For x=7, 8, or 9, the left side is respectively 7, 9, or 11, all of which are greater than 5. Therefore only option A is not a solution. The strict sign and endpoint exclusion are the decisive points.

Related tags

Linear InequalitiesStrict InequalityBoundary ValueAlgebraic SolutionAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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