Math, asked by sunilsingh84, 11 months ago

The sum of a number and 21 equals
30. Find the number.

Answers

Answered by rohit3359

4

Answer:

21 +9 = 30 30 is the number

Answered by Shuzuka43

4

Answer:

n+21=30

n=30-21

n=9

The number is 9

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