An airplane is flying at an altitude of 26,843 feet. The plane descends (goes down) 1,284 feet. Then the plane ascends (goes up) another 5,832 feet.

Let a represent the altitude of the plane.

Which equation could be used to find the final altitude of the plane?


A. a = 26,843 + 1,284 + 5,832

B. a=26,843+1,284−5,832

C. a=26,843−1,284+5,832

D. a=26,843−1,284−5,832