Deleting an image in the form

Question

I need to delete one image at a time from my bank, I have a table n:m and I’m unable to delete the image.

Follow part of the method to delete the image.

public function deleteImg(Imagem $imagem)
{
    $imagem()->delete();
    \Session::flash('mensagem_sucesso_produtos','Imagem deletada!');
    return back();
}