Posted by Elisa on .
The first side of a triangle is 8 meters longer than twice the second side. The third side is 3 times the second side. The perimeter is 128 meters. Find the lengths of the three sides.

Pre Algebra 
PsyDAG,
Let x = second side
First side = 2x +8
Third side = 3x
x + (2x + 8) + 3x = 128
Solve for x, then the other sides.
I hope this helps.