Question

ln(3x+4)-ln(2x+1)=5

Answer 1

; OTL. either way.
log rules so.
that equals:
ln( (3x+4) /( 2x+1 ) ) =5
(3x+4)/(2x+1) = e^5.
you can solve from here :)

Answer 2

i did and i got 0.49149 but when i plug it back in i get 2 as my asnwer

Answer 3

whay did i do wrong

Answer 4

Very close. missing a negative sign. it's -0.49....
i'll leave you to find out the negative sign unless you want to show working

Answer 5

ooo nvm i found it

Answer 6

ok so

3x+4 = e^5(2x+1)

4-e^5 = x(2e^5 -3)

x = (4-e^5)/(2e^5-3) = -.49149