Решите уравнение: a) x+3,12=-6,74 б) $$1\frac{3}{14}-y=2\frac{7}{10}$$

a) $$x + 3,12 = -6,74$$ $$x = -6,74 - 3,12$$ $$x = -9,86$$ б) $$1\frac{3}{14} - y = 2\frac{7}{10}$$ $$y = 1\frac{3}{14} - 2\frac{7}{10}$$ $$y = \frac{17}{14} - \frac{27}{10}$$ $$y = \frac{85}{70} - \frac{189}{70}$$ $$y = \frac{-104}{70}$$ $$y = -\frac{52}{35}$$ $$y = -1\frac{17}{35}$$