the numbers on two consecutively number gym lockers have a sum of 129. what are the locker numbers?

Question

the numbers on two consecutively numbered gym lockers have a sum of 129. What are the locker numbers?

Answer 1

n = a number

n + 1 = next consecutive number

 

n + n + 1 = 129

2n + 1 = 129

2n = 128

n = 64

 

The two numbers are 64 and 65.