Question 985162
let x, y be length of two segments
 x+y=24
  x=3y-4
  substitute x=3y-4 in x+y=24
            (3y-4)+y=24
             4y-4 = 24
         4y=24+4
   4y =28
   y= 28/4
   y=7
   x=3*7-4
 x=21-4
  = 17
Result : length of two segments = 17 cm , 7 cm