John is building a rectangular dog kennel up against his house using 31 ft of fenceing. The side against the house does not need a fence and the side parallel to his house needs to be 15 ft long. write a equation that models the situation and solve the length of one of the shorter sides out from the house​

Respuesta :

Answer:

   15+2x=31                            Each shorter side =8ft  

Step-by-step explanation:

x=short side

15+2x=31

2x=16

x=8

15 +8+8=31