September 2023 1 4 Report
constructivamente Obtén el valor desconocido en cada una de las proporciones.
2:x = x:8 X=
2:10 = x:18 X=
3:5 = 9:X X =
(x - 3):5 = 5:(x + 3)
6:(y + 5) = (y – 5):6 X=
(y + 20):29 = 29:(y - 20) y =
8:32 = 2:y y =
y = 6 = 24: y =
Alguien sabe cómo se hace esto?

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