Wow, I'm a new user and was in such a hurry that I didn't notice that in the first place.
Thank you for your timely assistance!
Btw, I have always wanted a manual of all the available functions,commands,syntaxs and parameters. For there can be situations like this where using Solve with x,1 as parameters makes sense. But I had no idea it's possible,considering I've been confused quite a long time and still struggling to figure it out.
Wish the App could be as much convenient as it's powerful.