Question

Find the value of k,if x=3 amd y=1 is a solution of the equation 2x+5y=k.

Answer 1

$when \: x = 3 \: \: y = 1 \\ 2x + 5y = k \\ = > 2 \times 3 + 5 \times 1 = k \\ = > 6 + 5 = k \\ = > 11 = k \\ = > k = 11$

Answer 2

Answer:

The value of k is equal to 11.

Step-by-step explanation:

We have given the linear equation:   $2x+5y=k$          ..........(1)

Put the value of  $x=3$ and $y=1$  in eq. (1)

Now              $2(3)+5(1)=k\\ \\ 6+5=k\\ \\ k=11$

Therefore the value of k for the given equation is 11.