Question

Find k if equation has infinite many solution kx-4y =3 6x-12y =9

Answer 1

Answer:

2

Step-by-step explanation:

a1/a2=b1/b2=c1/c2

K/6=4/12=-3/-9

Let first take: a1/a2=b1/b2

K/6=4 /12

Cross multiple

12k=24

K=24/12

K=2

Now, take

a1/a2 =c1/c2

K/6 = - 3/-9

Cross multiple

-9k=-18

K=-18/-9

K=2

So, k=2