I need help on my math hw

Because the sum of the internal angles must be equal to 180°, we will see that x = 43.75
Here we need to remember that the sum of the internal angles of a triangle always gives 180°, so we can write:
(x + 10)° + (3x - 5°) + x° = 180°
Now we need to solve this linear equation for x.
4x + 5= 180
4x = 180 - 5 = 175
x = 175/4 = 43.75
The value of x is 43.75
If you want to learn more about triangles, you can read:
https://brainly.com/question/2217700