SOLUTION: Side A of a triangle is twice side B. Side C is 2m shorter than side A. The perimeter is 98m. Find the length of each side. This is what is was working on, but at the end, when

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Side A of a triangle is twice side B. Side C is 2m shorter than side A. The perimeter is 98m. Find the length of each side. This is what is was working on, but at the end, when      Log On


   

Question 594781: Side A of a triangle is twice side B. Side C is 2m shorter than side A. The perimeter is 98m. Find the length of each side.
This is what is was working on, but at the end, when I added up the sides, they did not equal 98m.
A + B + C = Perimeter
A= 2B, B= B, C= A-2 or 2B - 2
2B + B + 2B - 2 = 98
5B = 100
B = 25m
Therefore, 98 = 50 + 25 + 48, but it doesn't
A B C
Can you explain, please?
A B C
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
oops...arithmetic

5B = 100 ___ B = 20