The perimeter of a triangle is 73 centimeters. One side is 5 centimeters longer than the second side. The third side is 8 centimeters longer than triple the length of the first side. Find the length of each side.

Solution:

f-first side
s-second side
t-third side 
The perimeter of a triangle is 73 centimeters means: 
 
One side is 5 centimeters longer than the second side means: 
 


The third side is 8 centimeters longer than triple the length of the first side means: 
t=3f+8 

now... 
 

then...
 

and 
 

sides are: 9cm, 14cm, and 50cm