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19.)solve (+2) + (-8)
20.)solve (-8) - (+9)
21.)solve (+7) x (-9)
22.)solve (-10)- (-10)​


Sagot :

19. -6
20.-17
21.63
22.0

Answer:

19. - 6

20. - 17

21. - 63

22. 0

Hope it helps

Correct me if I'm wrong

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