Answer:
it helps for you to understand the story more like maybe the the year the story takes place. also the main character might feel hot or cold and the setting might refer to that.
Explanation:
hope this helps :)
+x - 7
-(-x - 7)
- × - = +
- × + = -
-(-x - 7) = +x - 7
true true true true true true
L.H.S x 0 = 0
R.H.S x 0 = 0
L.H.S = R.H.S
Hence , proved .....
Lol ............ : P