+2,+2,+2,-2,-2,-2,+2,+2,+2 etc
Absolute value is always positive, it is the distance from 0
14/7 simplified is 2 because 7 can go into 14 exactly 2 times
The answer is B. The problem involves partial sums, thus the presence of sigma for easier coverage. The number above the sigma is the number where the process stops, while the number below is the starting value of the unknown value in the equation.