How does an user solve this?

How does an user solve this?
The only thing I remember is that it's called the Angle Addition Postulate.
Any help will be appreciated

It's just algebra in the form of a picture. Like the first one, you know they both add up to 180

13) m

My hero and nice trips

15) m

What does the 'm' in front of the angle symbol mean?

it looks like a person doing aerobics

Measure, if I'm not mistaken

17) m

Last 5

21)m

22) m

23) m

24) m

25) m

...

Actually no, m

It isn't said that it's 180 so I'm not gonna take a chance

I meant m

Why are all of the problems being done for OP?

It is fine to do a few of the questions to show the general procedure, but OP won't retain the information unless he does most of it himself.

Freshman

What high school do you go to?

I like math, got carried away

How bad are you at math you underage faggot

2 equations 2 unknowns.
u know the angle of stu = KTU + stu
and you just plug the equations on either side and solve for x