Relax

Respuesta :

Perimeter is sum of all side lengths.

WZ + ZY + YX  + XW = 24 -> (1)

XY + YZ = 5X - 1  (given)
XZ = 13 - x (given)

sub into (1):

WZ + 5x - 1 + 13 - x = 0

WZ  = 12 - 4x