Verified answer

Ответ:

а) х=

[tex] \frac{4}{5} - \frac{3}{5} = \frac{1}{5} [/tex]

б) y=

[tex] \frac{6}{7} + \frac{2}{7} = \frac{8}{7} [/tex]

в) k=

[tex] \frac{11}{25} - \frac{7}{25} = \frac{4}{25} [/tex]