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Contact [7]
3 years ago
5

The sum of a number and 21 equals 30 find the number​

Mathematics
2 answers:
ch4aika [34]3 years ago
7 0

Answer:

The number would be 9.

Step-by-step explanation:

Subtract 21 from 30 to get 9.

nydimaria [60]3 years ago
5 0

Answer:

its 9

Step-by-step explanation:

what equals 21+9=30!

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