Angle x and 2 are congruent so angle 2 is also 47 degrees.
Angle x and angle 1 are supplementary so angle x and angle 1 adds up to 180 degrees.
180-47=133. Angle 1 is equal to 133.
Angle 1 and angle 3 are congruent as well so angle 3 is also 133 degrees.
