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Artemon [7]
2 years ago
9

HELPPPP WITH MATHH HOMEWORKK PLSSS

Mathematics
2 answers:
DaniilM [7]2 years ago
3 0

Answer:

well I think it is so because it has to do with affecting the positive sign just think of it using normal circumstances

Svetlanka [38]2 years ago
3 0

Step-by-step explanation:

formally, there is only one alternative : if not negative, it would be a positive number.

and that would mean

2× -4/5 = x (= a positive number)

2× -4 = 5x (= still a positive number)

-4 = 5x/2 (= still a positive number)

and -4 is definitely not a positive number.

so, it is proven, 2× -4/5 cannot be a positive number, and therefore has to be a negative number.

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