Choose the equation that could be used to find two consecutive integers whose sum is 69.
n + (n + 2) = 69
n + (n + 1) = 69
n - (n + 1) = 69
n + 2n = 69

Solution:

Consider the first number as n

As they are consecutive integers we know that the second number is n + 1

n + (n + 1) = 69

By further calculation

n + n + 1 = 69

2n + 1 = 69

2n = 69 - 1

2n = 68

Dividing both sides by 2

n = 34

First number n = 34

Second number n + 1 = 35

Therefore, the equation is n + (n + 1) = 69.

Choose the equation that could be used to find two consecutive integers whose sum is 69.

Summary:

The equation that could be used to find two consecutive integers whose sum is 69 is n + (n + 1) = 69.