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If (\frac{4-x}{6}>\frac{x+2}{3}), what is the correct interval for (x)?

Answer and explanation

Correct answer: \(x<0\)

Multiplying both sides by the positive number 6 does not change the inequality sign: \(4-x>2(x+2)\). Thus, \(4-x>2x+4\), giving \(-3x>0\). On dividing by the negative number \(-3\), the inequality sign reverses, so \(x<0\). The closest distractor, \(x\leq0\), is incorrect because at \(x=0\) both sides are equal, whereas the question uses \(>\). Exam tip: always reverse an inequality when multiplying or dividing by a negative number.

Related tags

Linear InequalitiesOne Variable InequalitiesAlgebraic SolutionInequality Sign ReversalClass 11 MathematicsAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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