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aleksandrvk [35]
2 years ago
12

Find the indicated sum or difference 9-12: 9. 5+7 10. 7+(-9) 11. -5+20 12. -(-11)-7

Mathematics
1 answer:
TiliK225 [7]2 years ago
8 0

Answer:

7,-2,15,4

Step-by-step explanation:

9. 7

10. -2

11. 15

12. 4

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