Question

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

Answer 1

x = one number

x + 1 = second number

x + x + 1 = 129

Combine like terms

2x + 1 = 129

Subtract 1 from both sides.

2x = 128

Divide both sides by 2

x = 64

The locker numbers are 64 and 65