The sum of two consecutive integers is 129. Find the two integers
Let n = first integer and n+1 = second integer
129/2 ≈ 64
64+65 = 129
n + n + 1 = 129
2 n + 1 = 129
Subtract 1 to both sides
2 n = 129 - 1
2 n = 128
n = 128 / 2
n = 64
n + 1 = 64 + 1
n + 1 = 65