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Which option gives the correct solution for 3(x − 2) ≤ 2(x + 5)?

Answer and explanation

Correct answer: x ≤ 16

The governing method is to perform equivalent operations on both sides of a linear inequality. Expanding the brackets gives 3x − 6 ≤ 2x + 10. Subtract 2x from both sides: x − 6 ≤ 10. Adding 6 to both sides then gives x ≤ 16. No sign reversal occurs because only addition and subtraction were used; equivalently, any division involved would be by a positive coefficient. The equality value is included: substituting x = 16 gives 3(14) = 42 and 2(21) = 42, so the original non-strict inequality is satisfied. Option B reverses the direction, option C removes the valid endpoint, and option D has both errors. Therefore option A is correct.

Related tags

Linear-InequalitiesBracket-ExpansionAlgebraic-MethodInclusive-InequalityAlgebraic Solution Of Linear Inequalities In One VariableLinear InequalitiesMathematicsClass 11 Mcq

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