Answer:
5x +5
Step-by-step explanation:
The unknown side can be found using the formula for the perimeter of a rectangle:
P = 2(L +W) . . . . . where L, W are the length and width
Filling in the given information, we can solve for L:
14x +6 = 2(L +2x -2)
7x +3 = L +2x -2 . . . . . . divide by 2
5x +5 = L . . . . . . . . . . . . add 2-2x
The length of the missing side is 5x+5.
