SOLUTION: Two equal sides of a triangle are each 5 metres less than twice the third side. If the perimeter of the triangle is 55 metres, find the length of its sides.

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Question 519241: Two equal sides of a triangle are each 5 metres less than twice the third side. If the perimeter of the triangle is 55 metres, find the length of its sides.
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
2(2x-5)+x=55
4x-10+x=55
5x=65
x=65/5
x=13 one side
2x-5=21 two sides