Question

Solve for x in the following

Answer 1

x = 20

Explanation:

5x - 40 and 2x + 20 are vertical angles and are congruent , then

5x - 40 = 2x + 20 ( subtract 2x from both sides )

3x - 40 = 20 ( add 40 to both sides )

3x = 60 ( divide both sides by 3 )

x = 20