Question

if the lines given by 4x +ky=1 and 6x-10y=14 have unique solution find the value of k​

Answer 1

Answer:

don't know

I will try tomorrow

Answer 2

Answer:

Step-by-step explanation:

4 x+k y =1

multiply both sides with 3

⇒12 x+3 k y =3 →eq 1

6 x-10 y =14

multiply both sides with 2

⇒12 x-20 y=28  → eq 2

eq 2-eq 1

⇒-20 y -3 k y = 14

⇒-20-3 k = 14/y

⇒-3 k = 14/y+20

⇒k = 14+20 y/-3

⇒k  = -14-20 y/3

⇒k=-6 x+10 y-20 y/3

⇒k = -6 x -10 y/3