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(3x + 60)/5 = x - 40
3x + 60 = 5x - 200
260 = 2x
130 = x
x = 1.30 cm
3x - x = 60 * 5 - 40
2x = 300 - 40
2x = 260
x = 260 : 2
x = 130
Respuesta : la estatura de ana es de 130 cm