exam Maths Puzzle Numerical Ability

Find the length of each side of a triangle if the perimeter is 73. The length of the second side is twice the length of the first side and the length of the third side is five more than the length of the first side. I have no idea!!

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exam Other Question
solve by completing the square

m^2-25/2m=5/2 This problem is driving me nuts can you please help?

Here it is
For a fixed rate, a fixed principal amount and a fixed compounding cycle, the return is an exponential function