Marcel is his two children, jacquesand gilles, to balance on a seesaw so that they will be able tomake it tilt back and forth without the heavier child, jacques, simply sinking to the ground. given that jacques, whose weight isw, is sitting at distance l to the left of the pivot, at what distance l_1 should marcel place gilles, whose weight is w, to the right of the pivot to balance the seesaw?
express your answer in terms ofl, w, and w.