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Choose the solution of (2x+3y=13) and (4x-y=5).

Answer and explanation

Correct answer: (2, 3)

From the second equation, 4x-y=5 ⇒ y=4x-5. Substituting this into the first equation gives 2x+3(4x-5)=13. Thus, 14x-15=13, so 14x=28 and x=2. Now, y=4(2)-5=3. Therefore, the solution is (2, 3). Option (3, 2) does not satisfy the second equation because 4(3)-2=10, not 5. Exam tip: Always verify the obtained pair in both original equations.

Related tags

Pair Of Linear EquationsSubstitution MethodAlgebraic MethodsClass 10 MathematicsOrdered PairsAlgebraic Methods: Substitution Method And Elimination Method.Algebraic Methods Substitution Method And Elimination MethodPair Of Linear Equations In Two V

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