Answer:
X = 10
Step-by-step explanation:
<1 = 2x + 10
<2 = x + 20
<3 = 180 - 6x (linear angles = 180 degrees)
<1 + <2 + <3 = 180 degrees
2x + 10 + x + 20 + 180 - 6x = 180
-3x + 210 = 180
-3x = 180 - 210
x = -30/-3
x = 10
what you do id try to find the math book on quizelit or some websire and find the answer
