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julia-pushkina [17]
3 years ago
9

Help...this is due in a few hours

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0

Answer:

21

Step-by-step explanation:

14+7=21.

You do this to allow you to get that outcome, because you know 7*7=49.

Therefore 21-14=7

7*-7=49

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