Question 655628
1.  Combine the fractions using an LCD:  (w+x)/xw = 1/y<P>
2. Cross multiply:  yw+yx = xw<P>
3. Move the w terms to the same side:  yx = xw - yw<P>
4. Remove w from all terms on the right:  yx = w(x-y)<P>
5. Divide both sides by x-y:  yx/(x-y) = w