Tolong bantu dong pr besok nih....pakai jalan ya, please.....

18.
[tex] \frac{8}{x + 2} \div \frac{7}{2x + 4} \\ = \frac{8}{x + 2} \times \frac{2x + 4}{7} \\ = \frac{8}{x + 2} \times \frac{2(x + 2)}{7} \\ = \frac{16(x + 2)}{7(x + 2)} \\ = \frac{16}{7} \\ = 2 \frac{2}{7} [/tex]