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Q: The sum of a number and 9 is 16. find the number?

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25 is a square number, and the sum of 9 and 16 is 25. 9 and 16 are also square numbers.

39

⅔ a number - 9 = 7 → ⅔ a number = 7 + 9 = 16 → the number is 16 × 3/2 = 24.

it is 16...dumbie

the sum is the answer to an addition problem e.g.4+5=9 9 is the sum

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7

9 + 7 = 16 9 - 7 = 2

25 is a square number, and the sum of 9 and 16 is 25. 9 and 16 are also square numbers.

39

No because 9+7 = 16 which is a rational number

-3.5

-3.5

The sum of 16+2=18, and half of that is 9, so the question would be 16 minus what equals 9. So, the answer would be 7.

Find the answer by substituting number into the equationX + X2 = 90and you will find thatX = 9

Yes 16+9=25

16-5= 9

16

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