1. The problem statement, all variables and given/known data Two lenses that are L = 34 cm apart are used to form an image, as shown in figure. Lens 1 is converging and has a focal length f1 = 13 cm; lens 2 is diverging and has a focal length f2 = -7.0 cm. I am supposed to find out the distance from the first mirror http://www.webassign.net/walker/26-52alt.gif 2. Relevant equations I know how to solve problems with one lens/mirror, but I'm not sure if you have to draw out the rays and extend them to the second lens/mirror to solve it. 3. The attempt at a solution As I said earlier, I am guessing that drawing out the lines will solve it, but now I'm wondering if there is an equation for it.