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Another geometry question

I have posted a better link here of the problem:

C:\Documents and Settings\Joanne\Loc...Y QUESTION.htm

Here is what I have done so far:

I drew two parallel lines, one splitting angle x, and one splitting angle 60, angle x forms an alternate interior pair with the 30 degree angle. The other forms an alternate interior pair with the 60 degree angle.

Adding the two smaller angles together 30 + 60 gives you 90 degrees.

Therefore X = 90 degrees.

I'm not sure if this is correct, any advice, tips??? Is there another way that I can solve for X?

Again I need to solve for X

Thanks!