-7,2+(-8,23); -4,5+(-27,8);

Question

-7,2+(-8,23); -4,5+(-27,8);

Answer 1

-7,2+(-8,23)=- 15,43

-4,5+(-27,8)=- 32,3

Answer 2

-15,43; -32,3 ..................................................................................