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Class 10MathematicsPair of Linear Equations in Two VariablesAlgebraic methods: Substitution method and Elimination method.EasyLevel 56

What is the solution of (x+y=15) and (x=2y)?

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Answer and explanation

Correct answer: ( (10,5) )

Putting (x=2y) gives (3y=15), so (y=5) and (x=10). Substitution is easiest when a ratio relation is given.

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linear equationssubstitutionratio relationeasyclass 10

Frequently asked questions

What is the correct answer to this question?

( (10,5) )

Why is this the correct answer?

Putting (x=2y) gives (3y=15), so (y=5) and (x=10). Substitution is easiest when a ratio relation is given.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Pair of Linear Equations in Two Variables. Topic: Algebraic methods: Substitution method and Elimination method..

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