The number on two consecutively numbered gym lockers have a sum of159. what are the locker numbers. Use comma to separate the answer

The answer is 79 and 80.

x - the number of the first locker

x + 1 - the number of the consecutive locker

Their sum is 159.

x + x + 1 = 159

2x + 1 = 159

2x = 159 - 1

2x = 158

x = 158 / 2

x = 79

x - the number of the first locker: x = 79

x + 1 - the number of the consecutive locker x + 1 = 79 + 1 = 80