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Solve the inequality (\frac{7-2x}{3}\le \frac{x+5}{6}).

Answer and explanation

Correct answer: \(x\ge \frac{9}{5}\)

Multiplying both sides by the positive number 6 does not change the inequality sign: \(2(7-2x)\le x+5\). Thus, \(14-4x\le x+5\), so \(9\le 5x\), giving \(x\ge \frac{9}{5}\). The option \(x>\frac{9}{5}\) is incorrect because at \(x=\frac{9}{5}\), both sides are equal, and \(\le\) includes equality. Exam tip: Reverse an inequality sign only when multiplying or dividing by a negative number.

Related tags

Linear InequalitiesOne VariableFractional InequalitiesAlgebraic SolutionClass 11 MathematicsAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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