You can put this solution on YOUR website! First lets multiply everything by r to get rid of the fraction. So the equation now becomes mr= r^2-c. Now lets subtract r^2 from each side. mr-r^2=-c Now lets multiply each side by -1 to get the answer. -mr+r^2=c. (note: if you meant , I'm sorry for giving you the wrong solution, the solution to that is r-mr=c. I solved for .)