Ответ:

А) х=11/24

Б) х=57/40

вот ответ

Verified answer

[tex]a) \frac{7}{8} - x = \frac{5}{12} \\ - x = \frac{5}{12} - \frac{7}{8} \\ - x = \frac{5 \times 2 - 7 \times 3}{24} \\ - x = \frac{10 - 21}{24} \\ - x = - \frac{11}{24} \\ x = \frac{11}{24} \\ b)0.3 + (x - \frac{1}{8} ) = 1 \frac{3}{5} \\ 0.3 + x - \frac{1}{8} = 1 \frac{3}{5} \\ x = \frac{8}{5} - \frac{3}{10} + \frac{1}{8} \\ x = \frac{8 \times 8 - 3 \times 4 + 1 \times 5}{40} \\ x = \frac{64 - 12 + 5}{40} \\ x = \frac{57}{40} \\ x = 1 \frac{17}{40} [/tex]