Answer:
x = 10
Step-by-Step Explanation:
Since this triangle is an isosceles, that means two sides are the same and so being that two sides are the same, we can use this equation (5x - 3) • 2.
At first I tried 5, but soon after realized that it wouldn't be enough to make 104, so I doubled the number to 10.
x = 10
((5 • 10) - 3) • 2
(50 -3) • 2
47 • 2 = 94 ( sum of the two equal sides)
94 + 10 = 104
