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If ( 2(x-1)+3(x+2)\geq 4x+11 ), which statement is correct for (x)?

Answer and explanation

Correct answer: \(x\geq 7\)

Expanding the brackets gives the left-hand side as \(2x-2+3x+6=5x+4\). Thus, \(5x+4\geq 4x+11\) gives \(x+4\geq 11\) after subtracting \(4x\) from both sides, so \(x\geq 7\). The option \(x>7\) is not correct because at \(x=7\), both sides are equal, and \(\geq\) includes equality. Exam tip: When an inequality includes equality, always test the boundary value.

Related tags

Linear InequalitiesOne VariableBracket ExpansionAlgebraic SolutionBoundary ValueAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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