sicaria0407 sicaria0407

11-09-2020
Mathematics

contestada

Dos veces la edad de Mary más 7 es igual a 33. ¿Cuál es la
edad de Mary?

Respuesta :

zarampa zarampa

12-09-2020

Answer:

La edad de Mary es:

13 años

Step-by-step explanation:

Planteamiento:

2m + 7 = 33

m = edad de Mary

Desarrollo:

2m = 33 - 7

2m = 26

m = 26/2

m = 13

Comprobación:

2*13 + 7 = 33

26 + 7 = 33

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