Find the value of λ, if x = –λ and y = 5/2 is a solution of the eq – InterviewSolution

1.

Find the value of λ, if x = –λ and y = 5/2 is a solution of the equation x + 4y – 7 = 0.

Answer»

Given, (-λ, 5/2) is a solution of equation 3x + 4y = k

Substituting x = – λ and y = 5/2 in x + 4y – 7 = 0, we get

– λ + 4 (5/2) – 7 = 0

-λ + 10 – 7 = 0

λ = 3

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