Answer:
x = 25
Step-by-step explanation:
Angle 1 = 2x + 10
Angle 2 = 4x + 20
These two angles are going to add up to 180 because 180 is a straight line so we get the equation:
2x + 10 + 4x + 20 = 180
6x + 10 + 20 = 180
6x + 30 = 180
6x = 150
