How to make an if statement with two conditions?

I thought this was how you were supposed to do it.

if(Input.GetKeyDown(KeyCode.R))&&(!animation.isPlaying) {
			GameObject.Find("Soldier").animation.Play("Reload");
			PlayReloadAudio();
			Reload();
			
		}

I’m having trouble figuring this out. Please help.

Your brackets seems wrong
Simply do this:

if(Input.GetKeyDown(KeyCode.R) && !animation.isPlaying)
{
}