Answer:
-2y + 2
Step-by-step explanation:
First you need to get rid of the parentheses. To do this you need to take note in the sign before and simplify to get:
x - y + 1 - x - y + 1
Because of the negative, you have to change the signs of the second parenthesis. Then you combine like terms to get:
0x - 2y + 2
And you simplify even further to get your final answer:
-2y + 2
