Question

find k if x=2,y=1 is solution of 2x-3y+k

Answer 1

since,k is the solution of 2x-3y+k
$2x - 3y + k = 0$
putting the value of x and y-
$2(2) - 3(1) + k = 0$
$4 - 3 + k = 0$
$1 + k = 0$
=>
$k = - 1$