Answer:
7 is the greatest number
Step-by-step explanation:
We need to consider that our first number is X
This means that the second number is X+1 and the third number is x+2
If we add all the numbers we get
x + x+1 + x+ 2 = 18 (Since the sum must be 18)
We get
3x + 3 = 18 (We substract 3 on both sides)
3x +3 - 3 = 18 - 3
3x = 15 (We divide by 3 on both sides)
x= 5 (This is the smallest number)
The numbers are 5, 6 and 7. The greatest is 7.
