Question

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Answer 1

Answer:

-9

Step-by-step explanation:

If the point (2,k) lies on the equation, then substituting (2,k) in equation should fetch LHS==RHS

2x+y+5=0

substituting x=2 and y=k

4+k+5=0

k=-9

Answer 2

Answer:

-9

Step-by-step explanation:

let x=2 ,y=k

substituting the values in 2x+y+5=0

2×2+k+5=0

4+k+5=0

k=-9

hence , LHS= RHS

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