solve ln(x)=0
Let's solve in ℝ: ln(x) = 0
On the logarithm's domain, ln is strictly increasing: ln(x) = 0 is equivalent to x = 1
Candidates, pending the domain check: x = 1
For the expression ln(x) to exist, you must check: x > 0
Domain constraints: x > 0
▶Solution:   x = 1