17. Find the value of x.

Let's analyze the angles in the figure. The sum of consecutive interior angles on the same side of a transversal intersecting two parallel lines is 180 degrees. Assuming that the lines with angles 115 and 65 are parallel, as well as the line with 75 and x. Since the angle supplementary to 115 is $$180 - 115 = 65$$ degrees, and one given angle is $$65^{\circ}$$, therefore the two lines intersected by transversal are parallel. The same is valid for the second transversal. So, we have two parallelograms. So, x is supplementary to 75, so $$x = 180 - 75 = 105^{\circ}$$ **Answer: 105°**