Verified answer

Ответ:

-6[tex]\frac{4}{5}[/tex]

Объяснение:

[tex]\frac{y}{5y}[/tex] - 7 = [tex]\frac{1}{5}[/tex] - 7 = [tex]\frac{1}{5}[/tex]-[tex]\frac{7}{1}[/tex] = [tex]\frac{1}{5}[/tex]-[tex]\frac{35}{5}[/tex] = -[tex]\frac{34}{5}[/tex] = -6[tex]\frac{4}{5}[/tex]