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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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In a two-digit number, the tens digit is (x) and the units digit is (y). If (x+y=13) and (x-y=3), what are the digits?

Answer and explanation

Correct answer: (8) and (5)

Adding both equations gives (2x=16), so (x=8) and (y=5). In digit problems, do not interchange tens and units.

Related tags

Linear Equations Word Problem Digits 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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