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The sum of a number and 9 is 12.
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The sum of a number and 9 is 12.

User Kent Weigel
by
9.0k points

2 Answers

5 votes

Answer:

x=3

Explanation:

You take 12-9 to get 3 :)

User Guido Leenders
by
7.5k points
3 votes

Answer:


3

Explanation:

Simple, all you have to do is backwards equation. If the sum is 12. Subtract 12 by one of the numbers given.


12 - 9


==> 3


3 + 9 = 12

User Chleo
by
7.8k points
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