how to make one button disappear if i click another button unity

I am making a tutorial so when you click “about” arrows appear and then the about disappears but then u can press a back button to go back to the about button. How would I be able to do this? I am new to programming.

gameObject.SetActive(false);

gameObject would be whatever object you’re looking to turn off, which means that the button you’re clicking needs a pointer to it.