If the system of equations 5x+ay+7=0 and...

If the system of equations `5x+ay+7=0` and `by-12y+21=0` has infinitely many solutions, then what are the respective values of a and b ?

A

`-4` and `15`

B

`-3` and `5`

C

`3` and `-5`

D

`4` and `-15`

Verified by Experts

Similar Questions

Explore conceptually related problems

The system of equations x+py=0, y+pz=0 and z+px=0 has infinitely many solutions for

Show that the system of equations 4 x + 6y = 7, 12 x + 18 y = 21 has infinitely many solutions.

Find c if the system of equations cx + 3y + (3-c)= 0, 12x + cy- c= 0 has infinitely many solutions?

If the system of equations 2x + 3y = 7 and 2ax + (a + b) y = 28 has infinitely many solutions, then which one of the following is correct ?

Show graphically that the system of equations 3x-y=29x-3y=6 has infinitely many solutions.

If the system of equation x+ay=0,az+y=0 and ax+z=0 has infinite solutions,then the value of a is -1 b.1 c.0 d.no real values

The value of K for which the system of equations x+2y+7=0 and 2x+ky+14=0 have infinitely many solutions is

The value of 'k' so that the system of equations 3x-y-5 =0 and 6x-2y-k=0 has infinite solutions

For what value of k, the system of equations 8x + 5y = 9 and kx + 10y = 18 has infinitely many solutions?