534. Решите уравнение: 1) \(\frac{2}{3} x = 1\); 2) 5x = \(\frac{1}{6}\); 3) 4x = \(\frac{1}{4}\); 4) 7x = 20.

Ответ: 1) \(x = 1\frac{1}{2}\); 2) \(x = \frac{1}{30}\); 3) \(x = \frac{1}{16}\); 4) \(x = 2\frac{6}{7}\)

1. \(\frac{2}{3} x = 1\)
2. \(x = 1 : \frac{2}{3}\)
3. \(x = 1 \cdot \frac{3}{2}\)
4. \(x = \frac{3}{2}\)
5. \(x = 1\frac{1}{2}\)

1. \(5x = \frac{1}{6}\)
2. \(x = \frac{1}{6} : 5\)
3. \(x = \frac{1}{6} \cdot \frac{1}{5}\)
4. \(x = \frac{1}{30}\)

1. \(4x = \frac{1}{4}\)
2. \(x = \frac{1}{4} : 4\)
3. \(x = \frac{1}{4} \cdot \frac{1}{4}\)
4. \(x = \frac{1}{16}\)

1. \(7x = 20\)
2. \(x = 20 : 7\)
3. \(x = \frac{20}{7}\)
4. \(x = 2\frac{6}{7}\)

Ответ: 1) \(x = 1\frac{1}{2}\); 2) \(x = \frac{1}{30}\); 3) \(x = \frac{1}{16}\); 4) \(x = 2\frac{6}{7}\)