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What is the solution of the inequality \(12 \geq 3x+3\)?

Answer and explanation

Correct answer: \(x \leq 3\)

Subtracting 3 from both sides gives \(9 \geq 3x\). Dividing both sides by the positive number 3 gives \(3 \geq x\), which is equivalent to \(x \leq 3\). Option B incorrectly reverses the inequality sign; division by a positive number does not change its direction. Exam tip: the inequality sign reverses only when multiplying or dividing by a negative number.

Related tags

Linear InequalitiesInequality SolvingPositive DivisionClass 11 MathematicsAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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