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Which is the solution of 4x + 2 ≤ 14?

Answer and explanation

Correct answer: x ≤ 3

The governing concept is the algebraic solution of a linear inequality in one variable. Apply inverse operations while preserving the inequality relation. From 4x + 2 ≤ 14, subtract 2 from both sides to obtain 4x ≤ 12. Dividing by the positive number 4 gives x ≤ 3; the sign does not reverse because the divisor is positive. The endpoint is included because the original symbol is ≤. Substitution confirms the result: x = 3 gives 4(3) + 2 = 14, which satisfies 14 ≤ 14, while x = 4 gives 18 ≤ 14, which is false. Option B reverses the direction unnecessarily, and option C uses the wrong boundary.

Related tags

Linear InequalitiesAlgebraic SolutionPositive DivisionClass 11 MathematicsAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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