Ответ:

[tex] x\ = - \frac{17}{14} [/tex]

Verified answer

[tex]1)x + \frac{5}{7} = ( - \frac{3}{8}) \times1 \times \frac{1}{3} [/tex]

[tex]x = ( - \frac{3}{8} ) \times \frac{5}{7} \times \frac{4}{3} [/tex]

[tex]x = - \frac{60}{168} [/tex]

[tex]x = - \frac{5}{14} [/tex]

[tex]2)y - \frac{7}{12} = 3 \times \frac{1}{2} \times ( - \frac{4}{7} )[/tex]

[tex]y = 3 \times \frac{1}{2} \times ( - \frac{4}{7} ) \times ( - \frac{7}{12} )[/tex]

[tex]y = \frac{7}{2} \times ( - \frac{4}{7} ) \times ( - \frac{7}{12} )[/tex]

[tex]y = \frac{196}{168} [/tex]

[tex]y = \frac{49}{42} [/tex]

[tex]y = \frac{7}{6} [/tex]

отметь как 《лучший ответ》