Answer:
x = 93°
Explanation:
The angles on a triangle always add up to 180°.
We only know two of the angles: 35° and 58°, to find the third, we need to add those two up and subtract them from 180 like so:
180-(35+58)
which then equals:
87°
Now, a line is 180° so substract 87° from 180° and you get 93°
x = 93°
All you actually had to do was add 35 and 58 to get the answer but for the purpose of showing you how exactly everything works I did some extra steps.