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What is the correct solution of 5 - x > 2?

Answer and explanation

Correct answer: x < 3

The governing concept is solving a linear inequality while reversing its sign when dividing by a negative number. Begin with 5−x>2. Subtract 5 from both sides to obtain −x>−3. To isolate x, divide both sides by −1. Since −1 is negative, the inequality direction reverses, producing x<3. A check with x=0 gives 5−0=5>2, and 0<3, so the result includes a valid value. A check with x=4 gives 5−4=1, and 1>2 is false; 4 is also not less than 3. Option B has the wrong direction. Options C and D result from mishandling the constant terms or the sign. Therefore option A is the complete solution.

Related tags

Linear-InequalitiesOne-VariableSign-ReversalAlgebraic-SolutionAlgebraic Solution Of Linear Inequalities In One VariableLinear InequalitiesMathematicsClass 11 Mcq

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