Proved that the line `(x-1)/2=(y+2)/(-3)=(z-3)/1` lies on the plane `7x+5y+z=0`

Write the value of k such that the line (x-4)/1=(y-2)/1=(z-k)/2 lies on the plane 2x-4y+z=7

State which of the following statements are true (T) or false(F) The line (x+5)/(-2)=(y-3)/1=(z-2)/3 lies on the plane x-y+z+1=0.

If the line (x-3)/2=(y+k)/(-1)=(z+1)/(-5) lies on the plane 2x-y+z-7 = 0, then k = - (2,-1,-2)