How to generate a random vector3 with the same z distance relative to a map with rotation?

Hi guys solved it myself this is what I did.

     public float minX = -7.45f;
     public float maxX = -1.45f;
     float prevX;
     float prevZ;
 
     void Start () {
         prevX = transform.position.x;
         prevZ = transform.position.z;        
     }
 
  void Generate() {
 
         float newX = Random.Range(minX, maxX);
         float newZ = ((prevX - newX) - prevZ) * -1;
 
         prevX = newX;
         prevZ = newZ;
 
         Vector3 spawnLoc = new Vector3(newX, transform.position.y, newZ);
     }