Question

18. Find the value of k, if the linear equation x + 3y - k = 0, has one solution as (2, -1).​

Answer 1

Answer:

By subs x as 2, y as -1

☞ 2 + 3(-1) - k = 0

2 - 3 - k = 0

-1 -k =0

-(1+k) =0

k = -1

Step-by-step explanation:

Hope it helps uh!!

Answer 2

Answer:

if (2,-1) is one of the solution then we have to keep 2 in place of x and (-1) in place of y

=> 2 + 3 (-1) - k = 0

=> 2-3-K =0

=>k = -1

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