Respuesta :

mhanifa

Answer:

2

Step-by-step explanation:

Since it is AP, the common difference is same for any term:

  • (4x - 2) - (x + 1) = (6x - 3) - (4x - 2)
  • 3x - 3 = 2x -1
  • 3x - 2x = 3 - 1
  • x= 2

The first 3 terms are:

  • 3, 6, 9

Since the last term is 18, it means this AP has 6 terms:

  • {3, 6, 9, 12, 15, 18}

Answer: as we need to find the value of x only, it is = 2