Unity C# issue unable to get perfect position of a enemy in unity C# script using transform.position

when I command or set an enemy to go left and then at reaching a particular state or position I say my enemy to go right but it is not going right and not reaching to perfect position here is the code I think there is no issue in the code but it is not working properly so here are some images of the code

    using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;

    public class enem: MonoBehaviour
    {
        // Start is called before the first frame update
        void Start()
        {
        }

        // Update is called once per frame
        void Update()
        {
            transform.position = transform.position + new Vector3(-3f, 0f, 0f)* 1 * Time.deltaTime;
            if (transform.position.x < -29)
            {
                transform.position = transform.position + new Vector3(3f, 0f, 0f) * 1 * Time.deltaTime;
    

            }
        }
    }