Question

Simplify (x - y + 1) - (x + y - 1).
-2y+2
2y - 2
-2x + 2y
O2x - 2y + 2

Answer 1

Answer:

-2y +2

Step-by-step explanation:

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

Distribute the minus sign

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

Combine like terms

x-x -y-y +1+1

-2y +2

Answer 2

Answer:

2y+2

Step-by-step explanation: