Answer:
104, 105, 106
Step-by-step explanation:
Consider three consecutive integers. If the first is x then the second is 1 more than x (or x+1) and the third is x+2
The sum of these three integers is x + x+1 + x+2 and is known to be 312, so
x + x+1 + x+2 = 312, gather like terms
3x + 3 = 312, subtract 3 from both sides
3x = 309, divide both sides by 3
x = 104, so the integers are
104, 105, 106
