C4 Edexcel –Vector

In C4 Heinemann book, chapter 5, page-78, Mixed exercise 5K, question-10.


I need this question. I can’t read A’s x-coordinate only (_,-1, 3) from my book. Anyone who has this book, please give me that coordinate number.

For convenience, the question looks like:
The point A has coordinates (_, -1, 3) and the point B has coordinates (10, -2, 2). The line l has vector equation r = i + j + k +………………………………….so on [I could read rest of them].

It's (7, -1, 3).