The perimeter of an equilateral triangle is 6n - 15. write an expression to represent the length of each side.

answer: (6n - 15) / 3 which = 2n-5

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the perimeter of an equilateral triangle is 6n - 15.

each side length on an equilateral triangle is equal to one another, and there are 3 of them.

thus, if we were to divide the equation by 3, we would get the expression for the length of each side.

(6n - 15)/3

use the distributive property of division.

= (6n)/3 - 15/3

simplify

= 2n - 5

that should be your answer. happy studying~