Question

a. (-8) - (7) - (+4)​

Answer 1

Answer:

8-7+4 is not equal to 8+7-4.

Answer 2

Answer:

-19

Explanation:

Open the brackets

-8-7-4

First: (-8-7)-4, and 8+7=15, as the rule '-' and '-' signs add and form the sum in negative.

Second: (-15-4) as the rule '-' and '-' signs add and form the sum in negative.

Third: (-19, as 15+4=19, and as there are '-' signs answer is in '-') as the rule '-' and '-' signs add and form the sum in negative.