Question

-4,8-5,9 6,2-(-1,2) 7-9,3 1,2-12,3 -7,3-(-0,13)

Answer 1

-4,8-5,9=-10,7;
6,2-(-1,2)=8,4;
7-9,3=-2,3;
1,2-12,3=-0,3;
-7,3-(-0,13)=-7,17.

Answer 2

It looks like you've provided a list of coordinate pairs in the format (x1,y1)-(x2,y2). Each pair seems to represent a range or interval. However, it's not entirely clear what you want me to do with this information. Could you please provide more context or specify what you'd like to know or do with these coordinate pairs?