5.Решите уравнения. 3 a)3-x=1 9 9 6) (y-8)+1=10 19 19

a) $$\frac{3}{9} - x = 1\frac{5}{9}$$ $$-x = 1\frac{5}{9} - \frac{3}{9}$$ $$-x = 1\frac{2}{9}$$ $$x = -1\frac{2}{9}$$ б) $$(y - 8\frac{12}{19}) + 1\frac{7}{19} = 10$$ $$y - 8\frac{12}{19} = 10 - 1\frac{7}{19}$$ $$y - 8\frac{12}{19} = 9\frac{12}{19}$$ $$y = 9\frac{12}{19} + 8\frac{12}{19}$$ $$y = 17\frac{24}{19}$$ $$y = 18\frac{5}{19}$$ Ответ: а) $$x = -1\frac{2}{9}$$, б) $$y = 18\frac{5}{19}$$