Question

If x=2and y=1 is unique solution of the system x-y-1=0 and x+ky-5=0, then k =3 . solved this question step by step explain​

Answer 1

Answer:

x=2,y=1

$x - y - 1 = 0 \\ (2 - 1 )- 1 = 0 \\ 1 - 1 = 0$

is this correct

x=2,y=1,k3

x+ky-5=0

=2+3(1)-5=0

=(2+3)-5=0

=5-5=0