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What is the solution of the inequality 10 − 2x < 4?

Answer and explanation

Correct answer: x > 3

The governing concept is solving a one-variable linear inequality while reversing the sign when dividing by a negative number. Begin with 10 − 2x < 4. Subtract 10 from both sides to obtain −2x < −6. Now divide both sides by −2. Because −2 is negative, the inequality direction reverses: x > 3. The endpoint 3 is excluded, as can also be checked directly: at x = 3, the original left side is 10 − 6 = 4, and 4 < 4 is false. A value such as x = 4 gives 2 < 4, so it works. Hence option B is correct; the other choices either retain the wrong sign or calculate the boundary incorrectly.

Related tags

Linear-InequalitiesNegative-DivisionOne-VariableAlgebraic-SolvingAlgebraic Solution Of Linear Inequalities In One VariableLinear InequalitiesMathematicsClass 11 Mcq

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