Question

find k if kx +2y=6 and x=-1 and y =2​

Answer 1

${\huge{\underbrace{\rm{Question}}}}$

find k if kx +2y=6 and x=-1 and y =2

${\huge{\underbrace{\rm{Answer}}}}$

Given:

x = – 1

y = 2

To find:

Find the value of K

Solution:

The given equation is kx +2y=6

Now,

put the value of x and y

$\sf{\implies kx +2y=6}$

$\sf{\implies k×(-1)+2×2=6}$

$\sf{\implies -k+4=6}$

$\sf{\implies -k=6-4}$

$\sf{\implies -k=2}$

$\sf{\implies k = - 2}$

Therefore,the value of k is – 2

Answer 2

Explanation:

Given:

x = – 1

y = 2

To find:

Find the value of K

Solution:

The given equation is kx +2y=6

Now,

put the value of x and y

\sf{\implies kx +2y=6}⟹kx+2y=6

\sf{\implies k×(-1)+2×2=6}⟹k×(−1)+2×2=6

\sf{\implies -k+4=6}⟹−k+4=6

\sf{\implies -k=6-4}⟹−k=6−4

\sf{\implies -k=2}⟹−k=2

\sf{\implies k = - 2}⟹k=−2

Therefore,the value of k is