Answer:
-2, 0, +2
Step-by-step explanation:
Using one variable in different expression for each number, we can set up an equation equal to '0':
first integer: x
second integer: x + 2
third integer: x + 4
The sum of the integers is equal to '0':
x + x +2 + x + 4 = 0
Combine like terms: 3x + 6 = 0
Subtract 6 from both sides: 3x + 6 - 6 = 0 - 6 or 3x = -6
Divide by 3 on both sides: 3x/3 = -6/3
Solve for x = -2
second integer: x + 2 = -2 + 2 = 0
third integer: x + 4 = -2 + 4 = 2