Question

The value of K for which the pair of equations 2x+4y=5 and 6x + ky=9 has no solution is

Answer 1

Answer:

k = 12

Step-by-step explanation:

2x+4y=5

6x+ky=9

1. 2x+4y=5

       2x=5-4y

         x=5-4y/2………………(i)

2.  6x+ky=5

        6x=5-ky

          x=5-ky/6

from (i)

        5-4y/2= 5-ky/6

   -4y/2=-ky/6

        ky/6=4y/2

   ky/6=2y

        ky=12y

   k=12