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What is the solution of the inequality \(3(x+2)-5\geq 2(x-1)+8\)?

Answer and explanation

Correct answer: \(x\geq 5\)

Expanding the brackets gives \(3x+6-5=3x+1\) on the left and \(2x-2+8=2x+6\) on the right. Thus, \(3x+1\geq 2x+6\), which simplifies to \(x\geq 5\). Option B reverses the inequality without justification, while 9 results from incorrect simplification of the constants. Exam tip: reverse the inequality sign only when multiplying or dividing by a negative number.

Related tags

Linear InequalitiesBracket ExpansionAlgebraic SimplificationInequality SymbolsAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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