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Anna007 [38]
3 years ago
8

Find the sum: -21 + (-13) + (-9). A. -43 B. -25 C. 1 D. 4

Mathematics
2 answers:
Akimi4 [234]3 years ago
4 0
The answer is A. -43. All of thos additions of minus values are made substraction afterwards.
Alja [10]3 years ago
3 0
If you would like to solve - 21 + (- 13) + (- 9), you can calculate this using the following steps:

- 21 + (- 13) + (- 9) = - 21 - 13 - 9 = - 43

The correct result would be A. - 43.
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The main idea here is to "translate" the words into maths. 
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2 years ago
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