Question

what is the value of x?

Answer 1

Step-by-step explanation:

Since they are vertical angles we can write:

2x + 20 = 3(x - 10)

2x + 20 = 3x - 30

x = 50°

Answer 2

Answer: 50°

Step-by-step 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