Question

How do I solve and whats the answer?

Answer 1

x = -6

Explanation:

Here we have an equilateral triangle. All three sides have the same length, 2. Therefore, the interior angles are all equal to 60 degrees.

Therefore, 6 - 9x = 60, and -9x = 54. Dividing both sides by -9 results in

x = -54/9, or x = -6.