Mathematics, 26.08.2019 01:30 mprjug6

Hallar un numero, cuyo duplo aumentado en 5 es a su cuadruplo disminuido en 5 como 5 es a 7

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Hallar un numero, cuyo duplo aumentado en 5 es a su cuadruplo disminuido en 5 como 5 es a 7...