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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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If (3x+y=15) and (x+3y=13), what are the values of (x) and (y)?

Answer and explanation

Correct answer: (x=4,\ y=3)

From the first equation (y=15-3x); substituting gives (x+45-9x=13), so (x=4) and (y=3). Isolate the simpler variable in substitution.

Related tags

Linear Equations Substitution Solution Pair 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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