SOLUTION: I cannot seem to get the answer of this problem to match up write with the question. If a triangle has a perimeter of 84 meters and side lengths of 6x-3, 6x+4, and 8x+3, then what

Algebra ->  Polygons -> SOLUTION: I cannot seem to get the answer of this problem to match up write with the question. If a triangle has a perimeter of 84 meters and side lengths of 6x-3, 6x+4, and 8x+3, then what       Log On


   

Question 210538This question is from textbook Geometry
: I cannot seem to get the answer of this problem to match up write with the question. If a triangle has a perimeter of 84 meters and side lengths of 6x-3, 6x+4, and 8x+3, then what does x equal? This question is from textbook Geometry

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
The perimeter is the sum of the lengths of the three sides and this is given as 84 meters.
(6x-3)+(6x+4)+(8x+3) = 84
(6x+6x+8x)+(-3+4+3) = 84
20x+4 = 84 Subtract 4 from both sides.
20x = 80 Divide both sides by 20.
x = 4