If the length of one side of a triangle

Is 2x - 1 units and the perimeter is 18

What is x?

The equation isn't placed anywhere
On the triangle and the triangle is just
A regular one. It is not obtuse or acute

All triangles have some combination of right, acute, or obtuse angles.

Study this site and decide which kind of triangle this is.

http://www.mathsisfun.com/triangle.html

im assuming youre talking about an equilateral triangle.

the perimeter is A+b+C=18

and one side is 2x-1 so

so 2x-1+2x-1+2x-1=18

combine like terms

6x-3=18

so 21/6=x

x=3.5

To find the value of x in this scenario, we can use the fact that the perimeter of a triangle is the sum of the lengths of all its sides.

Let's set up the equation using the given information:
Perimeter = 18
Length of one side = 2x - 1

Since a triangle has three sides, we need to find the lengths of the other two sides. However, without any additional information, we cannot determine the exact lengths of the other two sides.

However, we can use the given information to create an equation using the perimeter formula. We can substitute the length of the side into the equation for each side to get the sum of the lengths:

Sum of lengths = (2x - 1) + (side 2) + (side 3)

Since we know the sum of the lengths is equal to the perimeter, we can write:

(2x - 1) + (side 2) + (side 3) = 18

Now, we can solve this equation to find the value of x. However, since we don't have the lengths of the other two sides or any further information about the triangle, we cannot determine the specific value of x.