# The length of the base of an isosceles triangle is

The length of the base of an isosceles triangle is x. The length of a leg is 4x- 2. The perimeter of the triangle is 104. Find x.
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sides of triangle measure: x, 4x-2 and 4x-2 since isosceles means both legs are equal
perimeter is the sum of all sides, so set up equation:
104 = 4x - 2 + 4x - 2 + x
104 = 8x - 4 + x
104 = 9x - 4
108 = 9x
x = 108/9
x = 12