Question

What is the value of x?

Answer 1

Answer: 50°

Explanation:

In the rules of angles, 2x + 20 equals 3(x - 10):

2x + 20 = 3(x - 10)

2x + 20 = 3x - 30 use the distributive property

2x + 50 = 3x add 30 to both sides

`\boxed{50}` = x subtract 2x from both sides

Answer 2

Explanation:

Since they are vertical angles we can write:

2x + 20 = 3(x - 10)

2x + 20 = 3x - 30

x = 50°