Question

11.The value of c for which the pair of equations cx - 6y = 2 and 6x - 9y = 3 will have infinitely many solutions is

Answer 1

Answer:

c=4

Step-by-step explanation: take

cx- 6y=2 as equation 1

and 6x-9y=3

the multiply equation 2 by 2/3

you will get 4x-6y=2 call it equation 3

now subtract equation 3 from 1  

you will get cx-4x=0

from that cx=4x

x will get cancelled

c=4