Respuesta:
Hace 5 años;
Explicación paso a paso:
M = 40 - t
F = 12 - t
40 - t = 5(12 - t)
40 - t = 60 - 5t
-t + 5t = 60 - 40
4t = 20
t = 20 : 4
t = 5 anos
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Verified answer
Respuesta:
Hace 5 años;
Explicación paso a paso:
M = 40 - t
F = 12 - t
40 - t = 5(12 - t)
40 - t = 60 - 5t
-t + 5t = 60 - 40
4t = 20
t = 20 : 4
t = 5 anos