Question

-9+(-5)+(-7)+21.
please answer

Answer 1

Answer:

-9+(-5)+(-7)+21

= -9-5-7+21

= 21-21

= 0

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Answer 2

Answer:

0

Step-by-step explanation:

-9-5 as + - is -

-5-7 as + - is -

-9-5-7+21= 0

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