Question

9/x=3/7 + --------+ /

Answer 1

х = 9*7/3 = 3*7 (т.к. 9 это 3*3, и одна тройка в знаменателе сокращается с одной в числителе) = 21

Answer 2

I apologize, but your equation seems to be incomplete or unclear. There are missing symbols and/or terms in the expression you provided. Could you please provide the complete equation with all the necessary components? This way, I can help you solve it properly.