algebra
posted by barbara .
A triangle has a perimeter of 56 centimeters. Each of the two longer sides of the triangle is three times as long as the shortest side. Find the length of each side of the triangle

algebra 
PsyDAG
Let x = short side, then 3x = each other side.
x + 3x + 3x = 56
Solve for x, then 3x.
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