The answer is "D".
x+x+(x+11)+(x+11)=86
4x+22=86
subtract 22
4x=64
divide by 4
x=16
C = 9 m the perimeter is all the sides added together you have 9 +8 that is 17 add another 9 and that equals 26 which is the perimeter.<span />
Ill tell you the answer if u mark me brainliest
For this case we have to:
x: Be the variable that represents the largest number
y: Be the variable that represents the smallest number
We propose a system of equations:

From the first equation we have to:

Substituting in the second equation:

We look for the value of "x":

Answer: