Question

упростите выражения 3/14x-2/7y-5/21x-8/21y

Answer 1

$\frac{3}{14} x - \frac{2}{7} y - \frac{5}{21} x - \frac{8}{21} y = \\ = \frac{9 }{42} x - \frac{6}{21} y - \frac{10}{42} x - \frac{8}{21} y = \\ = - \frac{1}{42} x - \frac{14}{21} y = - \frac{1}{42} x - \frac{2}{3} y$