Find value of k will the following pair of linear equations have infinitely many solutions?
kx + 3y – (k – 3) = 0
12x + ky – k = 0

For which value of k will the following pair of linear equations have no solution?
3x + y = 1
(2k – 1) x + (k – 1) y = 2k + 1

If the lines given by ax−y=3 and 21x−3y=9 will have infinitely many solutions, then the value of a is ______

The value of k, for which the system of equations kx−3y+6=0, 4x−6y+15=0represent parallel lines, is ____.

If the pair of linear equations3x+5y=3 and 6x+ky=6 do not have any solution, k=?

6

2

7

2

10