Question

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 each of its side.

Answer 1

2(2x-5)+x=55
4x-10+x=55
5x=65
x=65/5
x=13 one side
2x-5=21 two sides

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Answer 2

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