Please help me out with this. The sides of an isosceles triangle have lengths 2x + 4 and x + 8. The base has length 5x - 2. What is the length of the leg?
The answer is 18. The two sides are the same length, so you set the two sides equal to each other and solve for x. After finding x, you plug in the number into the base expression and you get the base length.
