Check out example codes for "unity how to move an object". It will help you in understanding the concepts better.

Code Example 1

float x = 10f; //the x value for the object's position
float y = 10f; //the y value for the object's position
float z = 10f; //the z value for the object's position
Vector3 position = new Vector3(x, y, z); // this will create a vector with the values of the x, y, and z values
transform.position = position; //this change the object that this script is attached to position to the position vector that was created

Code Example 2

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
    void Update()
        // Move the object forward along its z axis 1 unit/second.
        transform.Translate(Vector3.forward * Time.deltaTime);

        // Move the object upward in world space 1 unit/second.
        transform.Translate(Vector3.up * Time.deltaTime, Space.World);

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