SOLUTION: wat is The first side of a triangle is 7 cm shorter than twice the second side. The third side is 4 cm longer than the first side. The perimeter is 80 cm. Find the length of each s

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Question 1124134: wat is The first side of a triangle is 7 cm shorter than twice the second side. The third side is 4 cm longer than the first side. The perimeter is 80 cm. Find the length of each side.

Answer by josgarithmetic(39621) About Me  (Show Source):
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The first side of a triangle is 7 cm shorter than twice the second side. The third side is 4 cm longer than the first side. The perimeter is 80 cm.
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FIRST       2x-7
SECOND       x
THIRD       (2x-7)+4
PERIMETER   80

%282x-7%29%2Bx%2B%282x-7%29%2B4=80-------simplify and solve this. Evaluate the first and the third sides.