a) x + 3,12 = -5,43
x = -5,43 - 3,12
x = -8,55
б) \(1 \frac{3}{14} - y = 2 \frac{7}{10} \)
\( \frac{17}{14} - y = \frac{27}{10} \)
\(y = \frac{17}{14} - \frac{27}{10} \)
\(y = \frac{85}{70} - \frac{189}{70} \)
\(y = -\frac{104}{70} \)
\(y = -\frac{52}{35} \) = \(-1 \frac{17}{35} \)
Ответ:
a) x = -8,55
б) \(y = -1 \frac{17}{35} \)