Question

please answer the above question please
if you know please answer how to do ​

Answer 1

Answer:

-y x+(-y) x-y

-4 7+(-4)=3 7-4=3

-6 9+(-6)=3 9-6=3

-2 12+(-2)=10 12-2=10

-12 8+(-12)=-4 8-12= -4

Answer 2

Answer:

Step-by-step explanation: