SOLUTION: The perimeter of a triangle is 39cm. Two sides have the same length. The remaining side is 9cm less than twice the length of either of the other sides. Find the length of the sides

Algebra ->  Finance -> SOLUTION: The perimeter of a triangle is 39cm. Two sides have the same length. The remaining side is 9cm less than twice the length of either of the other sides. Find the length of the sides      Log On


   

Question 1187887: The perimeter of a triangle is 39cm. Two sides have the same length. The remaining side is 9cm less than twice the length of either of the other sides. Find the length of the sides of the triangle
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Three sides for a triangle.
If two sides have the SAME length, a variable like x can be for each of these two.
"remaining side", 2x-9

2x%2B%282x-9%29=39
-
4x-9=39
4x=48
x=12
.
.