It is given that
Therefore, given lines are coplanar.
We know that the equation of plane passing through both lines is written as
So we get
– 7x + 14 + 14y – 56 – 7z + 42 = 0
– 7x + 14y – 7z = 0
Multiply the entire equation by –ve sign
x – 2y + z = 0
Hence, the equation of plane is x – 2y + z = 0