Question

Mathematics adding and subtracting integers
PLEASE HELP ASAP
1 by 1 please

Answer 1

ummmmmmmmm it's: 1+1=3

Answer 2

- 5 and 12

Explanation:

Using the rules

- (-) = + , + (-) = -

- 7 - (- 5) + (- 3)

= - 7 + 5 - 3

= - 2 - 3

= - 5

--------------------------------

9 - (- 7) + (- 4)

= 9 + 7 - 4

= 16 - 4

= 12