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What is the value of (x) from (9x-4y=41) and (3x+4y=19)?

Answer and explanation

Correct answer: \(x=5\)

The coefficients of \(y\) are \(-4\) and \(+4\), so adding the equations eliminates \(y\): \(12x=60\). Hence, \(x=5\), making option B correct. For example, \(x=4\) does not satisfy the resulting equation \(12x=60\). Exam tip: Add equations directly when a variable has opposite coefficients.

Related tags

Pair Of Linear EquationsElimination MethodValue Of XAlgebraClass 10Algebraic Methods: Substitution Method And Elimination Method.Algebraic Methods Substitution Method And Elimination MethodPair Of Linear Equations In Two Variables

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