Question

Angles x+16) (4x-5)°

Answer 1

We have vertical angles, which means these angles are congruent like we can see in the diagram

so we can have the next equation in order to find x

x+16=4x-5

we sum similar terms

x-4x=-5-16

-3x=-21

x=-21/-3

x=7

the measure of the angle is