Solve In 4+in(3x)=2 round to the nearest hundredth

Answer 1

I will assume you meant

ln4 + ln(3x) = 4
then
ln(12x) = 4
12x = e^4
x = e^4/12 , you do the button pushing.

Answer 2

is in supposed to be ln ?
if so
ln (4*3x) = 2
ln (12 x ) = 2

e^ln12x = 12 x = e^2
x = e^2/12

Answer 3

I don't know where I got the 4 from.