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

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Choose the solution of (y=3x-5) and (2x+y=20).

Answer and explanation

Correct answer: ( (5,10) )

Putting (3x-5) in place of (y) gives (5x-5=20), so (x=5) and (y=10). Replace the entire expression carefully.

Related tags

Linear Equations Substitution Expression Medium 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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