The perimeter of any figure is the sum of all its sides. In the figure, we have the following sides:
8x, 5, 7, 6x, 6.
Perimeter is, therefore:
8x + 5 + 7 + 6x + 6
Summing similar terms:
P = (8x + 6x) + (5 + 7 + 6)
Thus, the following is the simplified expression for perimeter:
P = 14x + 18