Equation of plane through the line of intersection of two planes in vector form is
For the equation of plane Ax + By + Cz=D and point (x1,y1,z1), a distance of a point from a plane can be calculated as
x.2 + y.1 + z.(-2)-3 = 0
2x + y-2z-3 = 0
For λ = -1
In Cartesian form are 2x + y - 2z - 3 = 0 & x + 2y-2z + 3 = 0