Respuesta :

mhanifa

Answer:

  • 8

Step-by-step explanation:

Let the numbers are:

  • 6, x, y, 2

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:

  • x + y = 6 + 2 = 8

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