Question

if (5,k) is a solution of a linear equation 2x + y - 6 =0 then find the value of k

Answer 1

hi man here is your answer

2 x + y -6 =0  

( 5 , k)  

x= 5 , y=k

2(5) + k -6 = 0

10 + k - 6 =0  

4 + k = 0  

k = -4

Answer 2

Given,

• (5,k) is the solution of the linear equation 2x + y - 6 =0.

To find,

• We have to find the value of k.

Solution,

We can simply find the value of k by substituting the point (5,k) in the linear equation 2x + y - 6 =0.

                    2x + y - 6 =0

Since (5,k) is the solution of the linear equation 2x + y - 6 =0, then (5,k) must satisfy the given linear equation.

Now, substituting (5,k) in the above equation, we get

                    2(5) + k -6 = 0

                      10   + k -6 = 0

                                k +4 = 0

Shifting +4 from LHS to RHS, we get

                                    k = -4

Hence, if (5,k) is a solution of a linear equation 2x + y - 6 =0 then the value of k is -4.