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.

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