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What is the solution of the inequality 2(x+1) - 3(x-2) < 10?

Answer and explanation

Correct answer: x > -2

Expanding the brackets gives 2x + 2 - 3x + 6 < 10, so -x + 8 < 10 and hence -x < 2. Multiplying both sides by -1 reverses the inequality sign, giving x > -2. Therefore, option A is correct. Exam tip: always reverse the inequality sign when multiplying or dividing by a negative number; this is why x < -2 is incorrect.

Related tags

Linear InequalitiesAlgebraic SolutionInequality ReversalOne VariableAlgebraic Solution Of Linear Inequalities In One VariableMathematicsClass 11 Mcq

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