One side of a triangle is two more than a second side. The third side is fourteen less than seven times the second side. If the perimeter of the triangle is 15, find the length of each side.

Answer 1

f = 2+ s

t = 7s-14

f+s +t = 15

2+s + s + 7s -14 = 15

9s = 27

s = 27/9 = 3

f = 5

t = 7

sides are 3, 5 and 7