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What is the value of \(x\) in the equation \(x-7=2\)?

Answer and explanation

Correct answer: 9

To isolate \(x\) in \(x-7=2\), add 7 to both sides: \(x-7+7=2+7\), so \(x=9\). Option B is not correct because substituting 7 gives \(7-7=0\), not 2. Exam tip: Always substitute your answer back into the original equation to verify it.

Related tags

AlgebraLinear EquationOne-Step EquationEquation SolvingGeneral Chapter PracticeCommon QuestionsCommonMathematics

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