An equilateral triangle has a perimeter of 12
y
+
9
. What is the length of each side of the triangle?

3
y
+
4
3 y plus 4

4
y
+
3
4 y plus 3

36
y
+
27
36 y plus 27

27
y
+
36

4y + 3

Step-by-step explanation:

An equilateral triangle has three sides of equal length.

The length of each side is 1/3 of the perimeter.

(12y + 9)/3 = 12y/3 + 9/3 = 4y + 3

4y + 3

no this is a nonlinear negative