SOLUTION: An isosceles triangle has two equal sides.The lenghts of one of them is 4x-3 and the other is 2x+1.The one and only longest side of it has a length of 3x. Find the value of x and

Algebra ->  Equations -> SOLUTION: An isosceles triangle has two equal sides.The lenghts of one of them is 4x-3 and the other is 2x+1.The one and only longest side of it has a length of 3x. Find the value of x and       Log On


   

Question 206653This question is from textbook Longman mathematics for IGCSE Book1
: An isosceles triangle has two equal sides.The lenghts of one of them is 4x-3 and the other is 2x+1.The one and only longest side of it has a length of 3x.
Find the value of x and the perimeter of this triangle.
Please help me solving this question. Thank you very much indeed! This question is from textbook Longman mathematics for IGCSE Book1

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
using the two EQUAL sides ___ 4x - 3 = 2x + 1 ___ 2x = 4 ___ x = 2

4x - 3 = 4(2) - 3 = 5

2x + 1 = 2(2) + 1 = 5

3x = 3(2) = 6

so the sides are 5, 5, and 6