In ΔKLM, \overline{KM} KM is extended through point M to point N, \text{m}\angle MKL = (3x+19)^{\circ}m∠MKL=(3x+19) ∘ , \text{m}\angle LMN = (7x+5)^{\circ}m∠LMN=(7x+5) ∘ , and \text{m}\angle KLM = (2x+8)^{\circ}m∠KLM=(2x+8) ∘ . What is the value of x?x?

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm