Thanks, I understand it now. I have been struggling with these kinds of problems for a certain reason which is stressing me. I don't know why people on this forum are attacking me just for posting math here when I didn't do anything to others. Can you like delete those messages knowing that you're a moderator?
Thanks, CPhill! Also, can you check my work if it is correct? It was a post from a few days before but I just forgot to respond back. There is also have been some guests insulting me for no reason what so ever. Maybe you should check on it.