24.5=-2.5c-4c
24.5=-6.5c
49=-13c
3.77=-c
c=-3.77
According to the picture, angles 1 and 2 have the same measure because they are corresponding angles. Make equal both expressions for 1 and 2 and find x.

x is 3/2. Replace this value in both expression to find the measure of each angle.

The measure of these angles is 47°