On the mathematical problems of the first elementary equation!
Multiply both sides of the 1 equation by x at the same time to get11* 2+1* 2 * 3+…+1/9 *10 = x/1. 3+1/3-1/4 ...+1/9-10 =11/. The solution is x= 1024, that is, that number is-1024, and three numbers are 256,-1024,4096.