The perimeter of the rectangle below is 106 units. Find the length of side AD. Write your answer without variables.

Answer:
AD would be 20
Step-by-step explanation:
2x +2x +3x + 3 +3x+3=106
10x+6 = 106
10x =106-6
10x =100
x= 100/10
x=10
2x = 2*10
2x=20