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What happens when (x=6) is put in (2x-3<9)?

Answer and explanation

Correct answer: The statement will be false

To test whether a particular number satisfies an inequality, substitute that number for the variable and then evaluate both sides. The inequality here is strict: 2x-3<9. A strict less-than sign does not allow equality; the left side must be genuinely smaller than the right side.

Put x=6 into the expression: 2(6)-3=12-3=9. The statement then becomes 9<9, which is false because 9 equals 9 rather than being less than 9. Therefore option A is correct: the statement will be false. Solving the inequality also confirms this: 2x-3<9 gives 2x<12 and x<6. Since x=6 is the boundary value and is excluded, it cannot satisfy the original inequality.

Related tags

Linear InequalitiesChecking SolutionStrict Inequality

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