Position if Statement (2D)

Hi guys I'm not English so please excuse my grammer. I have a Problem, maybe I'm just stupid:

When I click a button then my Object moves to the right side. Now I want that when I click the same button again, it should move to the left side. Now i wanted to do an If Statement like

if(this.transform.position.Equals(-0.81, -3.65, 0))

But then it says me that equals is overloaded or something like that.
Or when u have a completly other Code then please tell me.

 

if (this.transform.position.Equals( new Vector3 (-0.81f, -3.65f, 0)))

you can try to use something to modify the moving direction. As example:

Code (CSharp):

1.  
2. public float speed;
3. //or use boolean bool direction
4. void Update () {
5. if (Input.GetButtonDown ("Fire1"))
6. //or an other key, like if (Input.GetKeyDown (KeyCode.A))
7.         {
8.             speed = speed * -1;
9.             //or direction = !direction
10.         }
11.  
12.         transform.Translate (Vector2.right * speed * Time.deltaTime);
13.         //or with rigidbody rigidbody.velocity = new Vector2 (speed, 0)
14. }
15.  

 

To elaborate on the error for a minute, it's telling you that Equals is expecting a single object, in this case a vector. https://docs.unity3d.com/ScriptReference/Vector3.Equals.html