unity change position of gameobject code example

Example 1: how to change the position of a gameobject in c# unity

Vector3 pos = transform.position;
pos.x = 12;
transform.position = pos;

Example 2: move gameobject to position unity

public Transform target;     
 public float speed;     
 
 void Update() 
 	{         
 	float step = speed * Time.deltaTime;         
    transform.position = Vector3.MoveTowards(transform.position, target.position, step);     
    }