There are 7 ones on the left and only 2 on the right. The two sides need to be even, or balanced.
7 = 2 + r
r = 5
Hope this helps!
Answer:
The answer is spread from 1 to 6! This is because the dots are spread through numbers 1-6 and there are no gaps.
There's nothing preventing us from computing one integral at a time:



Expand the integrand completely:

Then

The answer is 3/4. You divide both numbers (54 and 72) by 18 and you get 3/4. Hope it helps!