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Valentin [98]
3 years ago
6

3 + (5 + 7) = (3 + 5) + 7

Mathematics
1 answer:
Ivahew [28]3 years ago
4 0

Answer:

true

Step-by-step explanation:

3 + (5 + 7) = (3 + 5) + 7

3 + (12) = (8) + 7

15 = 15

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