Question

х/х-5у - 5у/5у-х упрастить

Answer 1

х/(х-5у) - 5у/(5у-х)=х/(х-5у) - 5у/(-(-5у+х))=х/(х-5у) +5у/(x-5y)=(x+5y)/(x-5y)

Answer 2

x/x-5y-5y/5y-x
x/x-5y+5y/x-5y
x+5y/x-5y