Question

If the length of one side of a triangle
Is 2x - 1 units and the perimeter is 18
What is x?
san
what kind of triangle is it. and on what side?
Don't know how to solve
It is just a regular triangle and the equation was not. Placed anywhere around the triangle
san
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