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Class 10 Mathematics Pair of Linear Equations in Two Variables Algebraic methods: Substitution method and Elimination method.Easy

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Which is the solution of (2x+y=6) and (y=2x)?

Answer and explanation

Correct answer: (x=1,\ y=2)

Substituting (y=2x) gives (2x+2x=6), so (x=\frac{3}{2}); hence none of the listed pairs would be correct.

Related tags

Linear Equations Substitution Careful Checking Easy Class 10 Algebraic Methods: Substitution Method And Elimination Method.Algebraic Methods Substitution Method And Elimination Method Pair Of Linear Equations In Two Variables

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