If the line "l" is given by the equations 2x-y+z=0, x+z-1=0, and if M is the point (1,3,-2), find a Cartesian equation of the plane.
a) passing through M and l
b) passing through M and orthogonal to l
The Attempt at a Solution
I expanded the equation above, so i got rn=r0n
And i don't know how to get the normal vector from those two equations