SOLUTION: THE SIDE OF AN EQUILATERAL TRIANGLE ARE GIVEN AS(3x+2)cm, (2y-x)cm and (y+3)cm.find x and y, and the perimeter of the triangle.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons -> SOLUTION: THE SIDE OF AN EQUILATERAL TRIANGLE ARE GIVEN AS(3x+2)cm, (2y-x)cm and (y+3)cm.find x and y, and the perimeter of the triangle.       Log On


   

Question 1138425: THE SIDE OF AN EQUILATERAL TRIANGLE ARE GIVEN AS(3x+2)cm, (2y-x)cm and (y+3)cm.find x and y, and the perimeter of the triangle.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
sides are equal
so 3x+2=2y-x=y+3
2y-x=y+3
y-3=x
substitute
3(y-3)+2=y+3
3y-9+2=y+3
2y=10
y=5
x=2
the sides are 8, 8, 8 with perimeter 24.