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What is the solution of the inequality 5x + 4 > 2x − 8?

Answer and explanation

Correct answer: x > −4

The governing concept is solving a linear inequality with the variable on both sides. Start with 5x + 4 > 2x − 8. Subtract 2x from both sides: 3x + 4 > −8. Then subtract 4 from both sides: 3x > −12. Dividing by the positive number 3 does not reverse the inequality, so x > −4. The boundary −4 is excluded because the original sign is strict; substituting x = −4 gives equality, not a value greater than the right side. A test value such as x = 0 confirms the result because 4 > −8 is true. Thus option A is correct; the other options reverse the direction or use the wrong boundary.

Related tags

Linear-InequalitiesVariables-On-Both-SidesAlgebraic-SolvingStrict-InequalityAlgebraic Solution Of Linear Inequalities In One VariableLinear InequalitiesMathematicsClass 11 Mcq

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