document.write( "Question 1080981: the derivative of x+y=xy with respect to y. Y is constant \n" ); document.write( "
Algebra.Com's Answer #695251 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"x%2By=xy\"
\n" ); document.write( "Implicitly differentiating,
\n" ); document.write( "\"dx%2Bdy=xdy%2Bydx\"
\n" ); document.write( "\"dy-xdy=ydx-dx\"
\n" ); document.write( "\"%28y-1%29dx=%281-x%29dy\"
\n" ); document.write( "\"dx%2Fdy=%281-x%29%2F%28y-1%29\"
\n" ); document.write( "
\n" ); document.write( "
\n" );