Question

Найдите разность!!!!!!!!!!!!!!!Срочно

Answer 1

$frac{1}{7x} - frac{5x+y}{7xy} = frac{y-(5x+y)}{7xy} = frac{y-5x-y}{7xy} = frac{-5x}{7xy} = -frac{5}{7y}$

Answer 2

Спасибо,братан)))))

Answer 3

$frac{1}{7x}- frac{5x+y}{7xy}= frac{y}{7xy}- frac{5x+y}{7xy} = frac{-5x+y-y}{7xy} = frac{-5x}{7xy}=frac{-5}{7y}$