Answer:
no solution
Explanation:
Lines AB and CD are shown to be parallel. Lines AB and CD are cut by transversal EF.
The angles labeled 3x and x are corresponding angles of two parallel lines cut by a transversal.
Corresponding angles of two parallel lines cut by a transversal are congruent.
That makes 3x = x
3x = x
2x = 0
x = 0
If x = 0, then 3x = 0.
A transversal line cannot intersect two parallel lines at an angle of 0 degrees with the parallel lines. Therefore, this situation cannot exist, and there is no answer to this question.