4. Решите уравнение б) y - \(\frac{43}{8}\) = 12\(\frac{1}{2}\).

4. Решим уравнение

б) y - \(\frac{43}{8}\) = 12\(\frac{1}{2}\).

1. y - \(\frac{43}{8}\) = 12\(\frac{1}{2}\)
2. y - \(\frac{43}{8}\) = \(\frac{12 \cdot 2 + 1}{2}\)
3. y - \(\frac{43}{8}\) = \(\frac{25}{2}\)
4. y = \(\frac{25}{2}\) + \(\frac{43}{8}\)
5. y = \(\frac{25 \cdot 4}{2 \cdot 4}\) + \(\frac{43}{8}\)
6. y = \(\frac{100}{8}\) + \(\frac{43}{8}\)
7. y = \(\frac{100+43}{8}\)
8. y = \(\frac{143}{8}\)
9. y = 17\(\frac{7}{8}\)

Ответ: y = 17\(\frac{7}{8}\)