Help find the area of the shape

With number 11 ( show how you got the answer)

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.

Aye asap pls ! markin da brainiest too ! btw da step choices are all add, distribute, divide, n subtract