Question

What is the value of x?

Answer 1

x = 3

Explanation:

This is an equiangular triangle. Because of that, all the sides are also the same length according to the Isosceles Triangle Theorem. That means that

5x = 3x + 6 and

5x = 6x - 3 and

6x - 3 = 3x + 6

Solve any one of those 3 equations and get that x = 3. In fact, solve all of them just to check yourself!