Why are the A, and D input keys,both moving my character right?

So ive been trying to get this 2.5D Player controller working they way i want for a day now. Ive tried multiple methods and finaly came up with a solution for my problem getting the player to face the direction im moving, however now my player only moves right.

I think it has to do with the problematic peice of code i will highlight bellow, as when i remove it, the movement works fine, but im not sure. i will also post the full code below that just in case.

Problem code:

 // Get Axis for player input
 
         var x = Input.GetAxis("Horizontal") * Time.deltaTime * walk;
         var z = Input.GetAxis("Vertical") * Time.deltaTime * walk;
 
         transform.Rotate(0, 0, 0);
         transform.Translate(0, 0, x);
 
         //Rotate character in the direction they're moving
         if (x != 0)
         {
             if (x > 0)
                 transform.forward = new Vector3(1, 0, 0);
             else if (x < 0)
                 transform.forward = new Vector3(-1, 0, 0);
         }

full code :

 using UnityEngine;
 using System.Collections;
 
 public class PlayerController : MonoBehaviour {
 
 
     public float walk = .7f;
     public Animation anim;
 
     void Start ()
     {
 
         anim = GetComponent<Animation>();
 
     }
     void Update()
 
     {
 
         // Get Axis for player input
 
         var x = Input.GetAxis("Horizontal") * Time.deltaTime * walk;
         var z = Input.GetAxis("Vertical") * Time.deltaTime * walk;
 
         transform.Rotate(0, 0, 0);
         transform.Translate(0, 0, x);
 
         //Rotate character in the direction they're moving
         if (x != 0)
         {
             if (x > 0)
                 transform.forward = new Vector3(1, 0, 0);
             else if (x < 0)
                 transform.forward = new Vector3(-1, 0, 0);
         }
 
 
         anim ["walk_normal"].speed = 2f;
 
 
         if(Mathf.Abs(Input.GetAxis("Horizontal"))>0.1F)
             anim.Play("walk_normal");
 
 
         else
             anim.Play ("idle_normal");
 
 Thanks

Chris