Answer: 2.20
Step-by-step explanation:
An isosceles triangle has two of its side equal. Since the length of of a leg is 2x-6, it means that the other length is also 2x-6 while the base is x.
We the add the sides together. This will be:
x + 2x - 6 + 2x - 6 = 23
5x - 12 = 23
5x = 23 - 12
5x = 11
x = 11/5
x = 2.20