Question

for what values of k, x =2 and y = - 1 is a solution of x +3y - k =0

Answer 1

Heyaa


Here s ur ans


Put the values in the equation


x+3y-k=O

2+3(-1) -k=0

2-3 -k=0

-1-k =0
k=-1


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Answer 2

The value of k = - 1

Given :

x = 2 and y = - 1 is a solution of x + 3y - k = 0

To find :

The value of k

Solution :

Step 1 of 2 :

Write down the given equation

Here the given equation is x + 3y - k = 0

Step 2 of 2 :

Find the value of k

Here it is given that x = 2 and y = - 1 is a solution of x + 3y - k = 0

Thus we get

$\displaystyle \sf{ 2 + (3 \times - 1) - k = 0 }$

$\displaystyle \sf{ \implies 2 - 3 - k = 0}$

$\displaystyle \sf{ \implies - 1 - k = 0}$

$\displaystyle \sf{ \implies - k = 1}$

$\displaystyle \sf{ \implies k = - 1}$

The value of k = - 1