PQRS is a quadrilateral.

+5

54 degrees

Step-by-step explanation:

The angles are congruent, so you can set them equal to each other.

7x-2=5x+14

add 2 to the right side, subtract 5x to the left side

Simplifies to 2x=16

x=8

then you plug 8 into either equation since they're the same

7 (8) - 2 = 56-2 = 54