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2x = 54
x- 27
Edad de Maria = x
El cuadruplo de Maria = 4x
El doble de Maria = 2x
4x - 28 = 2x + 26
4x - 2x = 26 + 28
2x = 54
x = 54/2
x = 27
Respuesta:
La edad de Maria es de 27 años