SOLUTION: Two sides of a triangle are equal in length. The length of the third side is three meters less than the sum of the lengths of the other two sides. Find the length of the longest

Algebra ->  Triangles -> SOLUTION: Two sides of a triangle are equal in length. The length of the third side is three meters less than the sum of the lengths of the other two sides. Find the length of the longest       Log On


   

Question 248706: Two sides of a triangle are equal in length. The length of the third side is three meters less than the sum of the lengths of the other two sides. Find the length of the longest side of the triangle if its perimeter is 29 meters.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
let x=one of the equal sides
let y= third side
y=2x-3
x+x+y=29
substitute 2x-3 for y
x+x+(2x-3)=29