Respuesta :

Gasaqui

Answer:

option b

Step-by-step explanation:

(x - y + 1) - (x + y - 1)

x - y + 1 - x - y + 1

-2y +2

Answer:

B.) -2y + 2.

Step-by-step explanation:

(x - y + 1) - (x + y - 1) First remove the first brackets and distribute the negative over the second set of brackets:

= x - y + 1 - x- y + 1

= -2y + 2.