ln(2x-5)= 4

how do i this problem? thanks!

1 answer

ln(2x-5) = 4
we raise both sides by e:
e^(ln(2x-5)) = e^4
the e and ln will be cancelled, leaving only the 2x - 5:
2x - 5 = e^4
2x = e^4 + 5
x = (e^4 + 5)/2

hope this helps~ :)