SOLUTION: if a triangle with all sides equal length has a perimeter of 15x+27, what is an expression for the length of one of it's sides?

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Question 962946: if a triangle with all sides equal length has a perimeter of 15x+27, what is an expression for the length of one of it's sides?
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
let s be the length of one of the triangle's sides, since all three sides have equal lengths,
3s = 15x +27
divide both sides of = by 3
s = 5x +9