Question

9. Fill in the blanks :
7
(i) (-1) +
(-1)+1
=(.....) +(-1)
)
12​

Answer 1

Step-by-step explanation:

0

if you put zero then you get both sides -1

Answer 2

Steps by explanation:

(i) (-1) + (1) = (1) +(-1)

Hope this will help you.