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If \(a>0\) and \(ax+b<c\), which inequality for \(x\) is correct?

Answer and explanation

Correct answer: \(x<\frac{c-b}{a}\)

Starting with \(ax+b<c\), subtracting \(b\) from both sides gives \(ax<c-b\). Since \(a>0\), division by \(a\) does not reverse the inequality sign, so \(x<\frac{c-b}{a}\). Option B would be correct only for a negative coefficient \(a\), while C and D incorrectly include equality. Exam tip: reverse an inequality sign only when multiplying or dividing by a negative number.

Related tags

Linear InequalitiesOne Variable InequalityPositive CoefficientAlgebraic SolutionAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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