Question

0=ln(x)/2

Answer 1

0=ln(x)/2 multiplying both side by 2 we get
0 = ln(x). But we know that ln(1) = 0 so compairing we get
ln(x) = ln(1) this gives you
x = 1
I hope this will help you :)

Answer 2

Or take: \[e ^{0}=e ^{\ln x}\] --> 1=x