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Goshia [24]
2 years ago
7

Please help i don't know what I'm doing ​

Mathematics
2 answers:
gulaghasi [49]2 years ago
8 0

Answer:

11 is the answer

Step-by-step explanation:

prisoha [69]2 years ago
5 0

Answer:

11

Step-by-step explanation:

to find one of the addend

subtract another one of the addend by the sum

eg : 9 + __= 20

20 - 9 = 11

now we can check

9 + 11 = 20

hope this helps

thanks bye

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