Respuesta :

vertical angles are equal

6x+11 =10x-9

subtract 6x from each side

11 = 4x-9

add 9 to each side

20 = 4x

divide by 4

x=5

m1 = 6x+11

m1 = 6(5) +11

m1 = 30+11

m1 = 41