Solve for x and y. parallel lines    x = 12, y = 14 x = 4, y = 14 x = 8.6, y = 4 x = 12, y = 4

Because the two lines are parallel, the vertically opposite angles will be congruent, and because of the definition of supplementary angles, you can set (15x - 5) = 180 - 125 then solve for x.
15x -5 = 55
15x = 60
x = 4
There's only one option when x = 4, so y must = 14.

This would be an open primary. a closed primary people can vote only prior to election day if the party if they are registered. independent voters can not participate. there is not a wide-open primary, but there is a semi-open primary.