CPM Homework Help : CCG Problem 9-70

Use the relationships given in the diagram below to write and solve an equation for $x$ . Show all work.

Hint:

How are these angles related? How can you use this relationship to find $x$ ?

More help:

They are alternate interior angles.

Two decreasing parallel lines cut by a transversal, at the intersection of the left parallel & transversal, interior, upper angle labeled, 4, x minus 5 degrees, at the intersection of the right parallel & transversal, the interior lower angle labeled, 2, x plus 9 degrees.