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Renato = m + 6
Resolvemos :
m + m + 6 = 10
2m + 6 = 10
2m = 10 - 6
2m = 4
m = 4/2
m = 2
m + 6 = 6 + 2 = 8
Solución :
Noelia tiene = 2 años
Renato tiene = 8 años