Question

if (-2,1) is a solution of the linear equation 2x+ ky=5, then find the value of k​

Answer 1

Answer:

if (-2,1) is a solution of the linear equation

2x+ ky=5, then the value of k :

$2 \times ( - 2) + k \times 1 = 5 \\ k = 5 + 4 = 9 \\ so \: \: k = 9$