The perimeter of the figure is given. Find the length of the indicated side. 4x -4 is one side what's the unknown slide the figure is a rectangle Perimeter = 12x + 4 The length of the indicated side is​

The perimeter of the figure is given Find the length of the indicated side 4x 4 is one side whats the unknown slide the figure is a rectangle Perimeter 12x 4 Th class=