Question

() [7+(-8)]+(-5) = 7+[(-8)+(-5)]​

Answer 1

Step-by-step explanation:

-1-5=7-13 ( if u calculate the both sides this will be the result)

-6=-6

Thus Verified.

Answer 2

Answer:

7+(-8)=7-8= -1

-1+(-5)= -1-5= -6

&

(-8)+(-5)= -13

7+(-13)=7-13= -6

hence, it is proved