Step-by-step explanation:
2x + 3x + 4x = 180
9x= 180
x=20
2x = y (because of alternate angles)
2x = 40
3x= 60
4x= 80
y=2x= 40
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Step-by-step explanation:
2x + 3x + 4x = 180
9x= 180
x=20
2x = y (because of alternate angles)
2x = 40
3x= 60
4x= 80
y=2x= 40