Question 153077
{{{7/(x-5) - (2+x)/(x-5)=(7- (2+x))/(x-5)=(7-2-x)/(x-5)=(5-x)/(x-5)=-(x-5)/(x-5)=-cross((x-5))/cross((x-5))=-1}}}



So {{{7/(x-5) - (2+x)/(x-5)=-1}}} where {{{x<>5}}}