434. Решите уравнения: 1) 9/16 − x = 1/2; 2) x + 2/3 = 7/8; 3) 1/2 + x = 23/24; 4) x − 3/8 = 1/4.

1. \(\frac{9}{16}-x=\frac{1}{2}\).

   \(x=\frac{9}{16}-\frac{1}{2}=\frac{9}{16}-\frac{8}{16}=\frac{1}{16}\).

2. \(x+\frac{2}{3}=\frac{7}{8}\).

   \(x=\frac{7}{8}-\frac{2}{3}=\frac{21}{24}-\frac{16}{24}=\frac{5}{24}\).

3. \(\frac{1}{2}+x=\frac{23}{24}\).

   \(x=\frac{23}{24}-\frac{1}{2}=\frac{23}{24}-\frac{12}{24}=\frac{11}{24}\).

4. \(x-\frac{3}{8}=\frac{1}{4}\).

   \(x=\frac{1}{4}+\frac{3}{8}=\frac{2}{8}+\frac{3}{8}=\frac{5}{8}\).

Ответ: 1) \(x=\frac{1}{16}\); 2) \(x=\frac{5}{24}\); 3) \(x=\frac{11}{24}\); 4) \(x=\frac{5}{8}\).