Relax

Respuesta :

Vertical angles are across from each other and are equal.
[tex]z = 105[/tex]

Adjacent angles along a line add up to 180 degrees.
[tex](6x+57) + 105 = 180 \\ \\ 6x+162 = 180 \\ \\ 6x = 18 \\ \\ x = 3[/tex]