Respuesta :

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Answer:

n = 28

Step-by-step explanation:

Let n - the number

The difference of a number and 9 is the same as 47 less the number.

n - 9 = 47 - n           add 9 to both sides

n - 9 + 9 = 47 + 9 - n

n = 56 - n       add n to both sides

n + n = 56 - n + n

2n = 56           divide both sides by 2

2n/2 = 56/2

n = 28

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