3 years ago

-56 + _ =-84 please help

Mathematics

1 answer:

GaryK [48]3 years ago

4 0

Answer:

-28 is the answer.

Step-by-step explanation:

84-56=28

56+28=84

-56+-28=-84

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Step-by-step explanation:

The ratio of the number of fiction books is 9:4

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so if the number of fiction books = 9x

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