Respuesta :

Answer:

x=20

Step-by-step explanation:

Given that P=36+x

l=x+2

w=6

x=?

Recall that the perimeter of a rectangle is

P=2(l+w)

inputting our values we have

36+x=2(x+2+6)

36+x=2(x+8)

open the bracket

36+x=2x+16

Collecting like terms we have

36-16=2x-x

20=x

Hope it helps, please vote 5 star