Resposta :
[tex] \geqslant resolucao \\ \\ \\ > \frac{7}{3} = \frac{56}{x} \\ \\ > 7x = 3 \times 56 \\ \\ 7x = 168 \\ \\ x = \frac{168}{7} \\ \\ x = 24 \\ \\ \\ resposta \: > \: 24 \: anos \\ \\ > < > < > < > < > < > > [/tex]

[tex] \geqslant resolucao \\ \\ \\ > \frac{7}{3} = \frac{56}{x} \\ \\ > 7x = 3 \times 56 \\ \\ 7x = 168 \\ \\ x = \frac{168}{7} \\ \\ x = 24 \\ \\ \\ resposta \: > \: 24 \: anos \\ \\ > < > < > < > < > < > > [/tex]