explanation, commentary

I read the explanation.

私は解説を読みます

I read the explanation at the library.

私は図書館で解説を読みます

I read the explanation at the library with my friend.

私は図書館で友達と解説を読みます

I read the explanation at the library with my friend after solving the problems.

私は図書館で友達と問題を解いた後に解説を読みます

I read the explanation slowly at the library with my friend after solving the problems.

私は図書館で友達と問題を解いた後にゆっくり解説を読みます