Find the equation of the plane through the line of intersection of the planes `x+2y+3z+4=0\ a n d\ x-y+z+3=0` and passing through the origin.

Explanation

To find the equation of the plane through the line of intersection of the planes \( x + 2y + 3z + 4 = 0 \) and \( x - y + z + 3 = 0 \), and passing through the origin, we can follow these steps:

### Step 1: Write the equations of the given planes
The equations of the two planes are:
1. Plane 1: \( P_1: x + 2y + 3z + 4 = 0 \)
2. Plane 2: \( P_2: x - y + z + 3 = 0 \)

### Step 2: Form the equation of the family of planes
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