Answer:
3x+1=3x+1
Step-by-step explanation:
I have a doubt that ur question is not complete.
Is the question 3x+1=7 then the answer is 2.
Answer: The answer is 7.
1. 35 pages in 7 days
2. 63 pages in 9 tables
3. 408 student on 8 buses
it was 400 back then, a decade ago
