Let n denote a positive integer. Let n be equal to the sum of the two numbers

Let n denote a positive integer. Let n be equal to the sum of the two numbers

2 × 1 / 2 = 2 + 1 / 2
3 × 3 / 2 = 3 + 3 / 2
4 × 4 / 3 = 4 + 4 / 3
……
N × (n-1) n = n + (n-1) n

Subtracting the product of a and B, the number that equals C is expressed in algebraic formula

Algebraic formula: ab + C
The basic quantity relation of this problem is: the subtracted = the subtracted + the difference

What is the sum of two numbers equal to their product, what is the law, and put forward similar questions
The main problem is the last one. The front is not important!

Let two numbers be x, YX + y = XY, which is transformed into y = x / (x-1). As long as X is not 1, for every number x takes, y has a number corresponding to it. In fact, y is a function of X. therefore, there are infinitely many numbers that meet the conditions. For example: x 0.5 2 3 5 10 15 10