The number of real roots of the equation x + LNX = 0 is

The number of real roots of the equation x + LNX = 0 is

Let y = f (x) = x + LNX
The domain of definition is: x > 0
∵y‘=1+1/x >0
The monotonic increase of ∧ f (x)
∵ f(e^(-3))=e^(-3)-30
So in (e ^ (- 3), e) interval function f (x) has a zero
That is, the number of real roots of the equation x + LNX = 0 is 1