Respuesta :

Answer: The answer is 39.

Step-by-step explanation: The shorter piece is X, and the longer piece would be (X + 6).

Since the rope is 84 in all, the equation would be X + (X + 6)=84 ->

2X + 6=84 -> 2X=84-6=78 -> 78/2= 39 -> X=39