Respuesta :

9514 1404 393

Answer:

  10x +6

Step-by-step explanation:

The perimeter is twice the sum of length and width:

  P = 2(L +W)

  P = 2((4x +3) +x)

  P = 2(5x +3)

  P = 10x +6

The perimeter of the shape is 10x +6.