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0

If 9 is 3/7 of the entire quantity:

3

--- X = 9

7

So, via cross multiplication:

9 * 7 = 3X

63 = 3X

21 = X

The entire set is composed of 21 on units.

To check:

3

--- * 21 = 9 ; This statement is true, so 21 is correct.

7

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15y ago

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