The diagram is a map showing a zoo, a planetarium, and a museum. Find the measure of the angle formed at the planetarium.

The figure shows a triangle. The vertices are labeled as planetarium, museum, and zoo. A measure of the angle planetarium is given by the formula 8 times x plus 8 degrees. A measure of the angle museum is given by the formula 5 times x plus 7 degrees. A measure of the angle zoo is given by the formula 3 times x plus 5 degrees.

30°
57°
35°
88°