в) \(\frac{11}{12}\) - x = \(\frac{1}{18}\)
x = \(\frac{11}{12}\) - \(\frac{1}{18}\)
x = \(\frac{11 \cdot 3}{12 \cdot 3}\) - \(\frac{1 \cdot 2}{18 \cdot 2}\)
x = \(\frac{33}{36}\) - \(\frac{2}{36}\)
x = \(\frac{33 - 2}{36}\)
x = \(\frac{31}{36}\)
Ответ: \(\frac{31}{36}\)