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Shalnov [3]
3 years ago
11

(Picture Included) 20 points - can someone solve 11, 12, 13, and 15?

Mathematics
1 answer:
slavikrds [6]3 years ago
6 0

11. 3(5) + 2(4)

15 + 8 = 13


12.  x= -12

13. -30

15. x = 44


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