Question

Simplify (x - y + 1) - (x + y - 1).

A.) 2x - 2y + 2
B.) -2y + 2
C.) o zy-2
D.) 2x + 2y

Answer 1

B.) -2y + 2.

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.

Answer 2

option b

Explanation:

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

x - y + 1 - x - y + 1

-2y +2