Respuesta :

7 : 5 = 7x : 5x

7x + 5x = 12x

12x = 48 ⇒ x = 48:12 = 4

7x = 7 · 4 = 28
5x = 5 · 4 = 20

Answer: 28 : 20
6.648 can be wrong or right not 4 sure.....
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