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For which value of x is \(5(2x-1)\leq 3x+16\) true?

Answer and explanation

Correct answer: \(x\leq 3\)

First expand the bracket: \(5(2x-1)=10x-5\). Thus \(10x-5\leq 3x+16\), which gives \(7x\leq 21\). Dividing by the positive number 7 yields \(x\leq 3\), so option A is correct. The inequality sign does not reverse because the divisor is positive; option C is incorrect because it excludes \(x=3\), which satisfies the original inequality. Exam tip: reverse the inequality sign only when multiplying or dividing by a negative number.

Related tags

Linear InequalitiesAlgebraic SolutionOne Variable InequalitiesAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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