(25 points each) The perimeter of an equilateral triangle is 6n - 15. Write an expression to represent the length of each side.

assume that you mean "the perimeter of an equilateral triangle is 6n-15". In an equilateral triangle, all three sides have the same length. If s = the length of a side, then the perimeter is s+s+s = 3s:

3s = 6n-15

Solve for s.

Each side is 2n-5

Step-by-step explanation:

Since it is an equilateral triangle, the sides have the same length, s.

The perimeter of an equilateral triangle is given by

P = 3s

6n-15 = 3s

Divide each side by 3

6n/3  -15/3 = 3s/3

2n -5 =s

Each side is 2n-5

i am thinking c. sorry if im wrong .

step-by-step explanation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square