Answer:
Step-by-step explanation:
Let the numbers are:
Since the sequence is arithmetic, the difference of two consecutive terms is same:
- d = x - 6 = y - x = 2 - y
Therefore:
- x = 6 + d
- y = 6 + 2d
- 2 = 6 + 3d
The sum of the first two equations:
- x + y = 6 + d + 6 + 2d = 6 + (6 + 3d)
Substitute (6 + 3d) with 2 (the third equation) to get:
