To solve the problem you have to isolate or separate x from everything else. That means adding 3 to both sides to start.
3. adjacent, x=49
4. vertical, x=171
5. vertical, x= 41
6. adjacent, x=14
Answer:

Step-by-step explanation:
add 5 and 6 because they have the same base z
53 on Friday, 60 on Saturday and 67 on Sunday. If you noticed there is an interval of 7 pages between each day.
Hope this will help.