Respuesta :

Answer:

x = 6 ; OL = 23 ;  LM = 23

Step-by-step explanation:

In parallelogram's opposite side's are equal.

 OL = LM

3x +5 = x + 17

3x - x  = 17- 5

2x = 12

x = 12/2

x = 6

OL = 3*6 + 5 = 18 + 5 = 23

LM = x + 17 = 6+ 17 =23