SOLUTION: Can you please help me solve this perimeter problem? I'm not very good with word problems and I so desperately need help in learning how to do it right for class. The word problem

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Question 200897: Can you please help me solve this perimeter problem? I'm not very good with word problems and I so desperately need help in learning how to do it right for class.
The word problem is: One side of a triangle is half the longest side. The third side is 10 meters less than the longest side. Ther perimeter is 45 meters. Find all three sides.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
One side of a triangle is half the longest side. The third side is 10 meters less than the longest side. Ther perimeter is 45 meters. Find all three sides.
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2x = longest side
x = 2nd side
2x-10 = 3rd side
Add them up.
2x + x + 2x-10 = 45
5x-10 = 45
5x = 55
x = 11 (2nd side)
2x = 22 (longest side)
2x-10 = 12 (3rd side)