The Director still has designs on Yuuya, but he's too busy studying for his upcoming exams to worry about it. Kaori comes over to help him with math, and then...! Later, Yuuya takes advantage of a short school holiday to head for the royal capital.
For that, you use the formula 
from the previous page.
.بالنسبة لذلك، عليك استخدام التركيبة من الصفحة السابقة
Hier benutzt man die Formel
von der Seite zuvor.
Il faut utiliser la formule
de la page précédente.
इसके लिए, तुम पिछले
 पेज़ वाला फॉर्मूला इस्तेमाल करो।
Qui devi usare la formula della pagina precedente.
Para isso, você usa a
fórmula da página anterior.
Тут используй формулу
 с предыдущей страницы.