Answer: 6x-11=139 degrees
20y+19=139 degrees
2x-9=41 degrees
Explanation:
6x-11=20y+19 because corresponding angles are equal
6x-11+2x-9=180 ==> These angles are on a straight line and add up to a straight angle which is 180 degrees.
6x+2x-11-9=180
8x-20=180
8x=200
x=25
6(25)-11=20y+19
150-11=20y+19
139=20y+19
20y=120
y=6
6x-11=6(25)-11=139 degrees
20y+19=20(6)+19=139 degrees
2x-9=2(25)-9=41 degrees