Answer:
x = 43
Step-by-step explanation:
The sum of angles in a triangle is equal to 180.
x + 2x + x + 8 = 180 add like terms
4x + 8 = 180 subtract 8 from both sides
4x = 172 divide both sides by 4
x = 43
To find the measure of each angle, replace x with 43
